diff --git a/libmpdemux/demux_ts.c b/libmpdemux/demux_ts.c
index ec6718854c..0bd4891c87 100644
--- a/libmpdemux/demux_ts.c
+++ b/libmpdemux/demux_ts.c
@@ -668,7 +668,7 @@ int mp_a52_framesize(uint8_t * buf, int *srate)
 //second stage: returns the count of A52 syncwords found
 static int a52_check(char *buf, int len)
 {
-	int cnt, frame_length, ok, srate;
+	int cnt, frame_length = 0, ok, srate;
 
 	cnt = ok = 0;
 	if(len < 8)