diff --git a/jerry-core/vm/vm.c b/jerry-core/vm/vm.c
index f9e3850a0..578b6f7e4 100644
--- a/jerry-core/vm/vm.c
+++ b/jerry-core/vm/vm.c
@@ -364,7 +364,13 @@ opfunc_call (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
   {
     this_value = stack_top_p[-3];
 
-    if (vm_get_implicit_this_value (&this_value))
+    if (this_value == ecma_make_simple_value (ECMA_SIMPLE_VALUE_REGISTER_REF))
+    {
+      /* Lexical environment cannot be 'this' value. */
+      stack_top_p[-2] = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
+      this_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
+    }
+    else if (vm_get_implicit_this_value (&this_value))
     {
       ecma_free_value (stack_top_p[-3]);
       stack_top_p[-3] = this_value;
diff --git a/tests/jerry/fail/1/regression-test-issue-1624.js b/tests/jerry/fail/1/regression-test-issue-1624.js
new file mode 100644
index 000000000..1c12273d1
--- /dev/null
+++ b/tests/jerry/fail/1/regression-test-issue-1624.js
@@ -0,0 +1,22 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+with ({}) {
+  a = function (b)
+  {
+    var init;
+    init();
+  }
+}
+a();