diff --git a/TracyC.h b/TracyC.h
index f6e56bba..df5780b9 100644
--- a/TracyC.h
+++ b/TracyC.h
@@ -183,7 +183,7 @@ TRACY_API void ___tracy_emit_frame_mark_start( const char* name );
 TRACY_API void ___tracy_emit_frame_mark_end( const char* name );
 TRACY_API void ___tracy_emit_frame_image( const void* image, uint16_t w, uint16_t h, uint8_t offset, int flip );
 
-#define TracyCFrameMark ___tracy_emit_frame_mark( 0 )
+#define TracyCFrameMark ___tracy_emit_frame_mark( NULL )
 #define TracyCFrameMarkNamed( name ) ___tracy_emit_frame_mark( name )
 #define TracyCFrameMarkStart( name ) ___tracy_emit_frame_mark_start( name )
 #define TracyCFrameMarkEnd( name ) ___tracy_emit_frame_mark_end( name )