diff --git a/googletest/include/gtest/internal/gtest-port-arch.h b/googletest/include/gtest/internal/gtest-port-arch.h
index fbffc95b1..bedfd26e9 100644
--- a/googletest/include/gtest/internal/gtest-port-arch.h
+++ b/googletest/include/gtest/internal/gtest-port-arch.h
@@ -71,7 +71,7 @@
 #elif defined __APPLE__
 #define GTEST_OS_MAC 1
 #include <TargetConditionals.h>
-#if TARGET_OS_IPHONE
+#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
 #define GTEST_OS_IOS 1
 #endif
 #elif defined __DragonFly__