diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 6402a1f3d4..30df400099 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -3199,6 +3199,7 @@ void ff_mpeg_set_erpic(ERPicture *dst, Picture *src)
 {
     int i;
 
+    memset(dst, 0, sizeof(*dst));
     if (!src)
         return;