diff --git a/libavformat/mpegvideodec.c b/libavformat/mpegvideodec.c
index f9c4062e58..8568ece9a8 100644
--- a/libavformat/mpegvideodec.c
+++ b/libavformat/mpegvideodec.c
@@ -52,9 +52,10 @@ static int mpegvideo_probe(AVProbeData *p)
             else if((code & 0x1e0) == AUDIO_ID)   apes++;
         }
     }
-    if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !apes && !res)
+    if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !apes && !res) {
         if(vpes) return AVPROBE_SCORE_MAX/8;
         else     return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
+    }
     return 0;
 }