diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 1e5ac60520..db4f63ed52 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1402,6 +1402,7 @@ static const uint8_t *decode_nal(H264Context *h, const uint8_t *src, int *dst_le
             }
             break;
         }
+        i-= RS;
     }
 
     if(i>=length-1){ //no escaped 0