diff --git a/include/tic80_config.h b/include/tic80_config.h
index 932eebd..64d8908 100644
--- a/include/tic80_config.h
+++ b/include/tic80_config.h
@@ -31,7 +31,7 @@
 #if defined(__APPLE__)
 #	include "AvailabilityMacros.h"
 #	include "TargetConditionals.h"
-#	ifndef TARGET_OS_IPHONE
+#	if !TARGET_OS_IPHONE
 #		undef __TIC_MACOSX__
 #		define __TIC_MACOSX__ 1
 #		if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
@@ -78,4 +78,4 @@
 #	else
 #		define TIC80_API
 #	endif
-#endif
\ No newline at end of file
+#endif