diff --git a/postproc/swscale.c b/postproc/swscale.c
index 8152aeace3..511b10c317 100644
--- a/postproc/swscale.c
+++ b/postproc/swscale.c
@@ -58,6 +58,7 @@ untested special converters
 #include "../bswap.h"
 #include "../libvo/img_format.h"
 #include "rgb2rgb.h"
+#include "../libvo/fastmemcpy.h"
 #undef MOVNTQ
 #undef PAVGB