diff --git a/libavformat/aacdec.c b/libavformat/aacdec.c
index aa2375690d979a688d97fa8e81aa0f51effd459f..fecb1e381da526a2d0c1060b13d1dbd2529a3b96 100644
--- a/libavformat/aacdec.c
+++ b/libavformat/aacdec.c
@@ -70,7 +70,7 @@ static int adts_aac_probe(AVProbeData *p)
         return AVPROBE_SCORE_EXTENSION;
     else if (max_frames >= 3)
         return AVPROBE_SCORE_EXTENSION / 2;
-    else if (max_frames >= 1)
+    else if (first_frames >= 1)
         return 1;
     else
         return 0;