diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 0ddd788153..0fc2f21138 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -8381,6 +8381,13 @@ bool HOptimizedGraphBuilder::TryInline(Handle<JSFunction> target,
     }
   }
 
+  // Unsupported variable references present.
+  if (function->scope()->this_function_var() != nullptr ||
+      function->scope()->new_target_var() != nullptr) {
+    TraceInline(target, caller, "target uses new target or this function");
+    return false;
+  }
+
   // All declarations must be inlineable.
   ZoneList<Declaration*>* decls = target_info.scope()->declarations();
   int decl_count = decls->length();
diff --git a/test/mjsunit/es6/regress/regress-inlined-new-target.js b/test/mjsunit/es6/regress/regress-inlined-new-target.js
new file mode 100644
index 0000000000..59932f6b4c
--- /dev/null
+++ b/test/mjsunit/es6/regress/regress-inlined-new-target.js
@@ -0,0 +1,13 @@
+// Copyright 2015 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.
+
+// Flags: --allow-natives-syntax
+
+function g() { return { val: new.target }; }
+function f() { return (new g()).val; }
+
+assertEquals(g, f());
+assertEquals(g, f());
+%OptimizeFunctionOnNextCall(f);
+assertEquals(g, f());