diff --git a/libvo/vo_s3fb.c b/libvo/vo_s3fb.c
index e733ac9d1f..b311871e89 100644
--- a/libvo/vo_s3fb.c
+++ b/libvo/vo_s3fb.c
@@ -128,6 +128,7 @@ int enable() {
     free(v);
     v = NULL;
   }
+  return 0;
 }
 
 void disable() {