diff --git a/docs/02.API-REFERENCE.md b/docs/02.API-REFERENCE.md
index 38cc19eab..d2f44033b 100644
--- a/docs/02.API-REFERENCE.md
+++ b/docs/02.API-REFERENCE.md
@@ -6737,7 +6737,7 @@ jerry_json_stringify (const jerry_value_t object_to_stringify);
   jerry_value_t obj = jerry_create_object ();
   jerry_value_t key = jerry_create_string ((const jerry_char_t *) "name");
   jerry_value_t value = jerry_create_string ((const jerry_char_t *) "John");
-  jerry_set_property (obj, key, value);
+  jerry_release_value (jerry_set_property (obj, key, value));
   jerry_value_t stringified = jerry_json_stringify (obj);
 
   //stringified now contains a json formated string
diff --git a/docs/03.API-EXAMPLE.md b/docs/03.API-EXAMPLE.md
index e27f40eb7..00e07aef6 100644
--- a/docs/03.API-EXAMPLE.md
+++ b/docs/03.API-EXAMPLE.md
@@ -151,7 +151,7 @@ main (void)
   jerry_value_t prop_value = jerry_create_string (str);
 
   /* Setting the string value as a property of the Global object */
-  jerry_set_property (global_object, prop_name, prop_value);
+  jerry_release_value (jerry_set_property (global_object, prop_name, prop_value));
 
   /* Releasing string values, as it is no longer necessary outside of engine */
   jerry_release_value (prop_name);
@@ -386,7 +386,7 @@ main (void)
 
   /* Set the native function as a property of the empty JS object */
   jerry_value_t prop_name = jerry_create_string ((const jerry_char_t *) "myFunc");
-  jerry_set_property (object, prop_name, func_obj);
+  jerry_release_value (jerry_set_property (object, prop_name, func_obj));
   jerry_release_value (prop_name);
   jerry_release_value (func_obj);
 
@@ -395,7 +395,7 @@ main (void)
 
   /* Add the JS object to the global context */
   prop_name = jerry_create_string ((const jerry_char_t *) "MyObject");
-  jerry_set_property (global_object, prop_name, object);
+  jerry_release_value (jerry_set_property (global_object, prop_name, object));
   jerry_release_value (prop_name);
   jerry_release_value (object);
   jerry_release_value (global_object);
@@ -462,7 +462,7 @@ add_handler (const jerry_value_t func_value, /**< function object */
     jerry_value_t res_val = jerry_create_number (x + d);
 
     /* Set the new value of 'this.x' */
-    jerry_set_property (this_val, prop_name, res_val);
+    jerry_release_value (jerry_set_property (this_val, prop_name, res_val));
     jerry_release_value (res_val);
   }
 
@@ -506,7 +506,7 @@ main (void)
 
   /* Set the native function as a property of previously created MyObject */
   jerry_value_t prop_name = jerry_create_string ((const jerry_char_t *) "add2x");
-  jerry_set_property (my_js_obj_val, prop_name, add_func_obj);
+  jerry_release_value (jerry_set_property (my_js_obj_val, prop_name, add_func_obj));
   jerry_release_value (add_func_obj);
   jerry_release_value (prop_name);
 
diff --git a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/I2C-js.cpp b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/I2C-js.cpp
index e1ba83e30..720ea99cd 100644
--- a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/I2C-js.cpp
+++ b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/I2C-js.cpp
@@ -139,7 +139,7 @@ DECLARE_CLASS_FUNCTION(I2C, read) {
 
         for (uint32_t i = 0; i < data_len; i++) {
             jerry_value_t val = jerry_create_number(double(data[i]));
-            jerry_set_property_by_index(out_array, i, val);
+            jerry_release_value(jerry_set_property_by_index(out_array, i, val));
             jerry_release_value(val);
         }
 
diff --git a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/InterruptIn-js.cpp b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/InterruptIn-js.cpp
index 539a50955..2cb1ab227 100644
--- a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/InterruptIn-js.cpp
+++ b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-drivers/source/InterruptIn-js.cpp
@@ -99,7 +99,7 @@ DECLARE_CLASS_FUNCTION(InterruptIn, rise) {
 
     // Keep track of our callback internally.
     jerry_value_t property_name = jerry_create_string((const jerry_char_t*)"cb_rise");
-    jerry_set_property(this_obj, property_name, f);
+    jerry_release_value(jerry_set_property(this_obj, property_name, f));
     jerry_release_value(property_name);
 
     return jerry_create_undefined();
@@ -164,7 +164,7 @@ DECLARE_CLASS_FUNCTION(InterruptIn, fall) {
 
     // Keep track of our callback internally.
     jerry_value_t property_name = jerry_create_string((const jerry_char_t*)"cb_fall");
-    jerry_set_property(this_obj, property_name, f);
+    jerry_release_value(jerry_set_property(this_obj, property_name, f));
     jerry_release_value(property_name);
 
     return jerry_create_undefined();
diff --git a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-launcher/source/setup.cpp b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-launcher/source/setup.cpp
index 6aa282efd..fb6bb27b1 100644
--- a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-launcher/source/setup.cpp
+++ b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-launcher/source/setup.cpp
@@ -39,7 +39,7 @@ void jsmbed_js_load_magic_strings() {
         jerry_value_t constant_value = jerry_create_number(jsmbed_js_magic_string_values[idx]);
         jerry_value_t magic_string = jerry_create_string(jsmbed_js_magic_strings[idx]);
 
-        jerry_set_property(global, magic_string, constant_value);
+        jerry_release_value(jerry_set_property(global, magic_string, constant_value));
 
         jerry_release_value(constant_value);
         jerry_release_value(magic_string);
diff --git a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-library-registry/source/wrap_tools.cpp b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-library-registry/source/wrap_tools.cpp
index 1fe7ab279..21607657d 100644
--- a/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-library-registry/source/wrap_tools.cpp
+++ b/targets/mbedos5/jerryscript-mbed/jerryscript-mbed-library-registry/source/wrap_tools.cpp
@@ -67,7 +67,7 @@ bool jsmbed_wrap_register_class_function(jerry_value_t this_obj, const char* nam
     jerry_value_t property_name = jerry_create_string(reinterpret_cast<const jerry_char_t *>(name));
     jerry_value_t handler_obj = jerry_create_external_function(handler);
 
-    jerry_set_property(this_obj, property_name, handler_obj);
+    jerry_release_value(jerry_set_property(this_obj, property_name, handler_obj));
 
     jerry_release_value(handler_obj);
     jerry_release_value(property_name);
diff --git a/targets/particle/source/main.cpp b/targets/particle/source/main.cpp
index 0c5e799e6..5ee277d8d 100644
--- a/targets/particle/source/main.cpp
+++ b/targets/particle/source/main.cpp
@@ -80,13 +80,13 @@ init_jerry ()
 
   func_obj = jerry_create_external_function (set_led);
   prop_name = jerry_create_string ((const jerry_char_t *) "setLed");
-  jerry_set_property (object, prop_name, func_obj);
+  jerry_release_value (jerry_set_property (object, prop_name, func_obj));
   jerry_release_value (prop_name);
   jerry_release_value (func_obj);
 
   func_obj = jerry_create_external_function (js_delay);
   prop_name = jerry_create_string ((const jerry_char_t *) "delay");
-  jerry_set_property (object, prop_name, func_obj);
+  jerry_release_value (jerry_set_property (object, prop_name, func_obj));
   jerry_release_value (prop_name);
   jerry_release_value (func_obj);
 
@@ -95,7 +95,7 @@ init_jerry ()
 
   /* Add the JS object to the global context */
   prop_name = jerry_create_string ((const jerry_char_t *) "test");
-  jerry_set_property (global_object, prop_name, object);
+  jerry_release_value (jerry_set_property (global_object, prop_name, object));
   jerry_release_value (prop_name);
   jerry_release_value (object);
   jerry_release_value (global_object);
diff --git a/tests/unit-core/test-api.c b/tests/unit-core/test-api.c
index 6e58a0698..09ec226c0 100644
--- a/tests/unit-core/test-api.c
+++ b/tests/unit-core/test-api.c
@@ -154,7 +154,10 @@ handler_construct (const jerry_value_t func_obj_val, /**< function object */
   TEST_ASSERT (jerry_get_boolean_value (args_p[0]) == true);
 
   jerry_value_t field_name = jerry_create_string ((jerry_char_t *) "value_field");
-  jerry_set_property (this_val, field_name, args_p[0]);
+  jerry_value_t res = jerry_set_property (this_val, field_name, args_p[0]);
+  TEST_ASSERT (!jerry_value_is_error (res));
+  TEST_ASSERT (jerry_value_is_boolean (res) && jerry_get_boolean_value (res));
+  jerry_release_value (res);
   jerry_release_value (field_name);
 
   jerry_set_object_native_pointer (this_val,
@@ -634,7 +637,10 @@ main (void)
   TEST_ASSERT (jerry_get_array_length (array_obj_val) == 10);
 
   jerry_value_t v_in = jerry_create_number (10.5);
-  jerry_set_property_by_index (array_obj_val, 5, v_in);
+  res = jerry_set_property_by_index (array_obj_val, 5, v_in);
+  TEST_ASSERT (!jerry_value_is_error (res));
+  TEST_ASSERT (jerry_value_is_boolean (res) && jerry_get_boolean_value (res));
+  jerry_release_value (res);
   jerry_value_t v_out = jerry_get_property_by_index (array_obj_val, 5);
 
   TEST_ASSERT (jerry_value_is_number (v_out)
@@ -899,7 +905,10 @@ main (void)
     char check_value[] = "{\"name\":\"John\"}";
     jerry_value_t key = jerry_create_string ((const jerry_char_t *) "name");
     jerry_value_t value = jerry_create_string ((const jerry_char_t *) "John");
-    jerry_set_property (obj, key, value);
+    res = jerry_set_property (obj, key, value);
+    TEST_ASSERT (!jerry_value_is_error (res));
+    TEST_ASSERT (jerry_value_is_boolean (res) && jerry_get_boolean_value (res));
+    jerry_release_value (res);
     jerry_value_t stringified = jerry_json_stringify (obj);
     TEST_ASSERT (jerry_value_is_string (stringified));
     char buff[jerry_get_string_length (stringified)];
diff --git a/tests/unit-ext/module/jerry-module-test.c b/tests/unit-ext/module/jerry-module-test.c
index c371fd6dd..43cfe8cd6 100644
--- a/tests/unit-ext/module/jerry-module-test.c
+++ b/tests/unit-ext/module/jerry-module-test.c
@@ -199,6 +199,7 @@ main (int argc, char **argv)
   (void) argc;
   (void) argv;
   jerry_value_t js_global = 0, js_function = 0, js_property_name = 0;
+  jerry_value_t res;
 
 #ifndef ENABLE_INIT_FINI
   my_broken_module_register ();
@@ -211,13 +212,19 @@ main (int argc, char **argv)
 
   js_function = jerry_create_external_function (handle_require);
   js_property_name = jerry_create_string ((const jerry_char_t *) "require");
-  jerry_set_property (js_global, js_property_name, js_function);
+  res = jerry_set_property (js_global, js_property_name, js_function);
+  TEST_ASSERT (!jerry_value_is_error (res));
+  TEST_ASSERT (jerry_value_is_boolean (res) && jerry_get_boolean_value (res));
+  jerry_release_value (res);
   jerry_release_value (js_property_name);
   jerry_release_value (js_function);
 
   js_function = jerry_create_external_function (handle_clear_require_cache);
   js_property_name = jerry_create_string ((const jerry_char_t *) "clear_require_cache");
-  jerry_set_property (js_global, js_property_name, js_function);
+  res = jerry_set_property (js_global, js_property_name, js_function);
+  TEST_ASSERT (!jerry_value_is_error (res));
+  TEST_ASSERT (jerry_value_is_boolean (res) && jerry_get_boolean_value (res));
+  jerry_release_value (res);
   jerry_release_value (js_property_name);
   jerry_release_value (js_function);