diff --git a/src/render/software/SDL_render_sw.c b/src/render/software/SDL_render_sw.c
index 6ca98b264..83ba8f4d2 100644
--- a/src/render/software/SDL_render_sw.c
+++ b/src/render/software/SDL_render_sw.c
@@ -288,7 +288,7 @@ SW_UpdateViewport(SDL_Renderer * renderer)
         renderer->viewport.w = surface->w;
         renderer->viewport.h = surface->h;
     }
-    //SDL_SetClipRect(data->surface, &renderer->viewport);
+    SDL_SetClipRect(data->surface, &renderer->viewport);
     return 0;
 }