diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 060d14b6aa..f928f524d4 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -1532,8 +1532,7 @@ Statement* Parser::DeclareFunction(const AstRawString* variable_name,
                                    ZoneList<const AstRawString*>* names,
                                    bool* ok) {
   VariableProxy* proxy =
-      factory()->NewVariableProxy(variable_name, NORMAL_VARIABLE);
-
+      factory()->NewVariableProxy(variable_name, NORMAL_VARIABLE, pos);
   Declaration* declaration =
       factory()->NewFunctionDeclaration(proxy, function, pos);
   Declare(declaration, DeclarationDescriptor::NORMAL, mode, kCreatedInitialized,
diff --git a/test/message/fail/redeclaration4.js b/test/message/fail/redeclaration4.js
new file mode 100644
index 0000000000..3cef563f30
--- /dev/null
+++ b/test/message/fail/redeclaration4.js
@@ -0,0 +1,10 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+"use strict";
+
+{
+  function foo() {}
+  function foo() {}
+}
diff --git a/test/message/fail/redeclaration4.out b/test/message/fail/redeclaration4.out
new file mode 100644
index 0000000000..9e1a7cbce9
--- /dev/null
+++ b/test/message/fail/redeclaration4.out
@@ -0,0 +1,5 @@
+*%(basename)s:9: SyntaxError: Identifier 'foo' has already been declared
+  function foo() {}
+  ^
+SyntaxError: Identifier 'foo' has already been declared
+
diff --git a/test/message/fail/redeclaration5.js b/test/message/fail/redeclaration5.js
new file mode 100644
index 0000000000..d47593ef08
--- /dev/null
+++ b/test/message/fail/redeclaration5.js
@@ -0,0 +1,8 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// MODULE
+
+function foo() {}
+function foo() {}
diff --git a/test/message/fail/redeclaration5.out b/test/message/fail/redeclaration5.out
new file mode 100644
index 0000000000..241582e0ee
--- /dev/null
+++ b/test/message/fail/redeclaration5.out
@@ -0,0 +1,5 @@
+*%(basename)s:8: SyntaxError: Identifier 'foo' has already been declared
+function foo() {}
+^
+SyntaxError: Identifier 'foo' has already been declared
+