diff --git a/libavformat/cavsvideodec.c b/libavformat/cavsvideodec.c
index 5ca3c80b32..880f4ab534 100644
--- a/libavformat/cavsvideodec.c
+++ b/libavformat/cavsvideodec.c
@@ -61,7 +61,7 @@ static int cavsvideo_probe(AVProbeData *p)
         }
     }
     if(seq && seq*9<=pic*10)
-        return AVPROBE_SCORE_EXTENSION;
+        return AVPROBE_SCORE_EXTENSION+1;
     return 0;
 }