diff --git a/include/gtest/gtest-param-test.h b/include/gtest/gtest-param-test.h
index adcc49ba..0b61629a 100644
--- a/include/gtest/gtest-param-test.h
+++ b/include/gtest/gtest-param-test.h
@@ -1394,7 +1394,7 @@ internal::CartesianProductHolder10<Generator1, Generator2, Generator3,
                       GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>()); \
       return 0; \
     } \
-    static int gtest_registering_dummy_; \
+    static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
     GTEST_DISALLOW_COPY_AND_ASSIGN_(\
         GTEST_TEST_CLASS_NAME_(test_case_name, test_name)); \
   }; \
diff --git a/include/gtest/gtest-param-test.h.pump b/include/gtest/gtest-param-test.h.pump
index 55ddd2d0..8033f497 100644
--- a/include/gtest/gtest-param-test.h.pump
+++ b/include/gtest/gtest-param-test.h.pump
@@ -460,7 +460,7 @@ internal::CartesianProductHolder$i<$for j, [[Generator$j]]> Combine(
                       GTEST_TEST_CLASS_NAME_(test_case_name, test_name)>()); \
       return 0; \
     } \
-    static int gtest_registering_dummy_; \
+    static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
     GTEST_DISALLOW_COPY_AND_ASSIGN_(\
         GTEST_TEST_CLASS_NAME_(test_case_name, test_name)); \
   }; \