diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
index 2cea4b875d452c..3d24701f5ef608 100644
--- a/deps/v8/include/v8-version.h
+++ b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 6
 #define V8_MINOR_VERSION 1
 #define V8_BUILD_NUMBER 534
-#define V8_PATCH_LEVEL 50
+#define V8_PATCH_LEVEL 51
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
diff --git a/deps/v8/src/parsing/parser-base.h b/deps/v8/src/parsing/parser-base.h
index 104e36ea9347ce..81e864c146da4d 100644
--- a/deps/v8/src/parsing/parser-base.h
+++ b/deps/v8/src/parsing/parser-base.h
@@ -3573,6 +3573,7 @@ void ParserBase<Impl>::ParseFormalParameter(FormalParametersT* parameters,
   //   BindingElement[?Yield, ?GeneratorParameter]
   bool is_rest = parameters->has_rest;
 
+  FuncNameInferrer::State fni_state(fni_);
   ExpressionT pattern = ParsePrimaryExpression(CHECK_OK_CUSTOM(Void));
   ValidateBindingPattern(CHECK_OK_CUSTOM(Void));
 
diff --git a/deps/v8/test/message/fail/func-name-inferrer-arg-1.js b/deps/v8/test/message/fail/func-name-inferrer-arg-1.js
new file mode 100644
index 00000000000000..6c28367d921433
--- /dev/null
+++ b/deps/v8/test/message/fail/func-name-inferrer-arg-1.js
@@ -0,0 +1,10 @@
+// Copyright 2017 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.
+
+(function (param = function() { throw new Error('boom') }) {
+  (() => {
+    param();
+  })();
+
+})();
diff --git a/deps/v8/test/message/fail/func-name-inferrer-arg-1.out b/deps/v8/test/message/fail/func-name-inferrer-arg-1.out
new file mode 100644
index 00000000000000..3c19121a0a6efa
--- /dev/null
+++ b/deps/v8/test/message/fail/func-name-inferrer-arg-1.out
@@ -0,0 +1,8 @@
+*%(basename)s:5: Error: boom
+(function (param = function() { throw new Error('boom') }) {
+                                ^
+Error: boom
+    at param (*%(basename)s:5:39)
+    at *%(basename)s:7:5
+    at *%(basename)s:8:5
+    at *%(basename)s:10:3
\ No newline at end of file
diff --git a/deps/v8/test/message/fail/func-name-inferrer-arg.js b/deps/v8/test/message/fail/func-name-inferrer-arg.js
new file mode 100644
index 00000000000000..3fcd044b9b1831
--- /dev/null
+++ b/deps/v8/test/message/fail/func-name-inferrer-arg.js
@@ -0,0 +1,10 @@
+// Copyright 2017 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.
+
+(function (param) {
+  (() => {
+    throw new Error('boom');
+  })();
+
+})();
diff --git a/deps/v8/test/message/fail/func-name-inferrer-arg.out b/deps/v8/test/message/fail/func-name-inferrer-arg.out
new file mode 100644
index 00000000000000..06e001d1d5e641
--- /dev/null
+++ b/deps/v8/test/message/fail/func-name-inferrer-arg.out
@@ -0,0 +1,7 @@
+*%(basename)s:7: Error: boom
+    throw new Error('boom');
+    ^
+Error: boom
+    at *%(basename)s:7:11
+    at *%(basename)s:8:5
+    at *%(basename)s:10:3
\ No newline at end of file