diff --git a/googlemock/test/gmock-internal-utils_test.cc b/googlemock/test/gmock-internal-utils_test.cc
index 6c898cd2..f8633df2 100644
--- a/googlemock/test/gmock-internal-utils_test.cc
+++ b/googlemock/test/gmock-internal-utils_test.cc
@@ -36,6 +36,7 @@
 #include "gmock/internal/gmock-internal-utils.h"
 #include <stdlib.h>
 #include <map>
+#include <memory>
 #include <string>
 #include <sstream>
 #include <vector>