diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index 049074d6e5b1..a13eedebfa5f 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -499,7 +499,7 @@ def err_setter_type_void : Error<"type of setter must be void">;
 def err_duplicate_method_decl : Error<"duplicate declaration of method %0">;
 def warn_duplicate_method_decl : 
   Warning<"multiple declarations of method %0 found and ignored">, 
-  InGroup<MethodDuplicate>;
+  InGroup<MethodDuplicate>, DefaultIgnore;
 def err_objc_var_decl_inclass : 
     Error<"cannot declare variable inside @interface or @protocol">;
 def error_missing_method_context : Error<
diff --git a/clang/test/SemaObjC/DoubleMethod.m b/clang/test/SemaObjC/DoubleMethod.m
index 6c7e907cb58a..3452dbedb513 100644
--- a/clang/test/SemaObjC/DoubleMethod.m
+++ b/clang/test/SemaObjC/DoubleMethod.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -Wduplicate-method-match -fsyntax-only -verify %s
 
 @interface Subclass
 {
diff --git a/clang/test/SemaObjC/check-dup-decl-methods-1.m b/clang/test/SemaObjC/check-dup-decl-methods-1.m
index 667c38114564..389566781d87 100644
--- a/clang/test/SemaObjC/check-dup-decl-methods-1.m
+++ b/clang/test/SemaObjC/check-dup-decl-methods-1.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -Wduplicate-method-match -fsyntax-only -verify %s
 
 @interface SUPER
 - (int) meth;
diff --git a/clang/test/SemaObjC/class-conforming-protocol-1.m b/clang/test/SemaObjC/class-conforming-protocol-1.m
index 5d4e86ddfe41..115ddd231ead 100644
--- a/clang/test/SemaObjC/class-conforming-protocol-1.m
+++ b/clang/test/SemaObjC/class-conforming-protocol-1.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -Wduplicate-method-match -fsyntax-only -verify %s
 
 @protocol P1 @end
 @protocol P2 @end