diff --git a/CMake/macOSMaxAllowed.c b/CMake/macOSMaxAllowed.c
index 665d24389..4628348d3 100644
--- a/CMake/macOSMaxAllowed.c
+++ b/CMake/macOSMaxAllowed.c
@@ -1,6 +1,6 @@
 
 #include <AvailabilityMacros.h>
-#if __MAC_OS_X_VERSION_MAX_ALLOWED < SDK_VERSION_CHECK
-#error __MAC_OS_X_VERSION_MAX_ALLOWED < SDK_VERSION_CHECK
+#if MAC_OS_X_VERSION_MAX_ALLOWED < SDK_VERSION_CHECK
+#error MAC_OS_X_VERSION_MAX_ALLOWED < SDK_VERSION_CHECK
 #endif
 int main(int argc, char** argv) { return 0; }