diff --git a/src/parsing/parser-base.h b/src/parsing/parser-base.h
index 2af0b964c7..b74f5af7eb 100644
--- a/src/parsing/parser-base.h
+++ b/src/parsing/parser-base.h
@@ -4069,6 +4069,8 @@ void ParserBase<Impl>::ParseFunctionBody(
     DCHECK_EQ(function_scope, scope());
     DCHECK_EQ(function_scope, inner_scope->outer_scope());
     impl()->SetLanguageMode(function_scope, inner_scope->language_mode());
+    // TODO(verwaest): Disable DCHECKs in failure mode?
+    RETURN_IF_PARSE_ERROR_VOID;
     BlockT init_block = impl()->BuildParameterInitializationBlock(parameters);
 
     if (is_sloppy(inner_scope->language_mode())) {
diff --git a/test/mjsunit/regress/regress-899133.js b/test/mjsunit/regress/regress-899133.js
new file mode 100644
index 0000000000..4e11d49160
--- /dev/null
+++ b/test/mjsunit/regress/regress-899133.js
@@ -0,0 +1,5 @@
+// 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.
+
+assertThrows("let fun = ({a} = {a: 30}) => {", SyntaxError);