diff --git a/jerry-core/ecma/operations/ecma-regexp-object.cpp b/jerry-core/ecma/operations/ecma-regexp-object.cpp
index d2e84fab4..b3db0492e 100644
--- a/jerry-core/ecma/operations/ecma-regexp-object.cpp
+++ b/jerry-core/ecma/operations/ecma-regexp-object.cpp
@@ -158,7 +158,7 @@ re_initialize_props (ecma_object_t *re_obj_p, /**< RegExp obejct */
   }
 
   ecma_deref_ecma_string (magic_string_p);
-  prop_value = flags & RE_FLAG_GLOBAL ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
+  prop_value = (flags & RE_FLAG_GLOBAL) ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
   JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA);
   ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value));
 
@@ -174,7 +174,7 @@ re_initialize_props (ecma_object_t *re_obj_p, /**< RegExp obejct */
   }
 
   ecma_deref_ecma_string (magic_string_p);
-  prop_value = flags & RE_FLAG_IGNORE_CASE ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
+  prop_value = (flags & RE_FLAG_IGNORE_CASE) ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
   JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA);
   ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value));
 
@@ -190,7 +190,7 @@ re_initialize_props (ecma_object_t *re_obj_p, /**< RegExp obejct */
   }
 
   ecma_deref_ecma_string (magic_string_p);
-  prop_value = flags & RE_FLAG_MULTILINE ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
+  prop_value = (flags & RE_FLAG_MULTILINE) ? ECMA_SIMPLE_VALUE_TRUE : ECMA_SIMPLE_VALUE_FALSE;
   JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA);
   ecma_set_named_data_property_value (prop_p, ecma_make_simple_value (prop_value));
 
diff --git a/jerry-core/parser/js/opcodes-dumper.cpp b/jerry-core/parser/js/opcodes-dumper.cpp
index 68b5531fc..63cc0af2d 100644
--- a/jerry-core/parser/js/opcodes-dumper.cpp
+++ b/jerry-core/parser/js/opcodes-dumper.cpp
@@ -1154,7 +1154,7 @@ dump_call_additional_info (opcode_call_flags_t flags, /**< call flags */
 
   const vm_instr_t instr = getop_meta (OPCODE_META_TYPE_CALL_SITE_INFO,
                                        flags,
-                                       (idx_t) (flags & OPCODE_CALL_FLAGS_HAVE_THIS_ARG
+                                       (idx_t) ((flags & OPCODE_CALL_FLAGS_HAVE_THIS_ARG)
                                                 ? this_arg.data.uid
                                                 : INVALID_VALUE));