Include gtest and gmock headers as user headers instead of system headers.
diff --git a/include/gmock/internal/gmock-internal-utils.h b/include/gmock/internal/gmock-internal-utils.h
index 19ea89e..7aaf6de 100644
--- a/include/gmock/internal/gmock-internal-utils.h
+++ b/include/gmock/internal/gmock-internal-utils.h
@@ -42,9 +42,9 @@
 #include <ostream>  // NOLINT
 #include <string>
 
-#include <gmock/internal/gmock-generated-internal-utils.h>
-#include <gmock/internal/gmock-port.h>
-#include <gtest/gtest.h>
+#include "gmock/internal/gmock-generated-internal-utils.h"
+#include "gmock/internal/gmock-port.h"
+#include "gtest/gtest.h"
 
 namespace testing {
 namespace internal {