diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index 09d140948..9a38f70e0 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -1578,7 +1578,7 @@ static void SDL_FinishWindowCreation(SDL_Window *window, Uint32 flags)
         SDL_MinimizeWindow(window);
     }
     if (flags & SDL_WINDOW_FULLSCREEN) {
-        SDL_SetWindowFullscreen(window, flags);
+        SDL_SetWindowFullscreen(window, SDL_TRUE);
     }
     if (flags & SDL_WINDOW_MOUSE_GRABBED) {
         /* We must specifically call SDL_SetWindowGrab() and not