diff --git a/src/Backends/SDL2/Window-Software.cpp b/src/Backends/SDL2/Window-Software.cpp
index 4084cc10..c47c2ea6 100644
--- a/src/Backends/SDL2/Window-Software.cpp
+++ b/src/Backends/SDL2/Window-Software.cpp
@@ -87,6 +87,6 @@ void WindowBackend_Software_HandleWindowResize(unsigned int width, unsigned int
 	// We need to fetch a new surface pointer
 	window_sdlsurface = SDL_GetWindowSurface(window);
 
-	if (!window_sdlsurface)
+	if (window_sdlsurface == NULL)
 		Backend_PrintError("Couldn't get SDL surface associated with window: %s", SDL_GetError());
 }