diff --git a/src/video/SDL_blit_A_sse4_1.c b/src/video/SDL_blit_A_sse4_1.c
index 7dfd669624..5348879277 100644
--- a/src/video/SDL_blit_A_sse4_1.c
+++ b/src/video/SDL_blit_A_sse4_1.c
@@ -169,6 +169,7 @@ void SDL_TARGETING("sse4.1") BlitNtoNPixelAlpha_SSE4_1(SDL_BlitInfo* info) {
         src += srcskip;
         dst += dstskip;
     }
+    SDL_free(buffer);
 }
 
 #endif