diff --git a/libswscale/yuv2rgb_vis.c b/libswscale/yuv2rgb_vis.c
index 618508c472..120fa56c71 100644
--- a/libswscale/yuv2rgb_vis.c
+++ b/libswscale/yuv2rgb_vis.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 
 #include "swscale.h"
+#include "swscale_internal.h"
 
 #define YUV2RGB_INIT \
     "wr %%g0, 0x10, %%gsr \n\t" \