diff --git a/googlemock/test/gmock_output_test_.cc b/googlemock/test/gmock_output_test_.cc
index ca628df6..d5f909d9 100644
--- a/googlemock/test/gmock_output_test_.cc
+++ b/googlemock/test/gmock_output_test_.cc
@@ -39,6 +39,14 @@
 
 #include "gtest/gtest.h"
 
+
+// Silence C4100 (unreferenced formal parameter) for MSVC
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4100)
+#endif
+
+
 using testing::_;
 using testing::AnyNumber;
 using testing::Ge;
@@ -298,3 +306,7 @@ int main(int argc, char **argv) {
   TestCatchesLeakedMocksInAdHocTests();
   return RUN_ALL_TESTS();
 }
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif