diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 625d832b27..712d7bbddb 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -812,6 +812,7 @@ static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
     int current_fragment;
 
     if (s->keyframe) {
+        return 0;
     } else {
         memset(motion_x, 0, 6 * sizeof(int));
         memset(motion_y, 0, 6 * sizeof(int));