diff --git a/apps/plugins/mikmod/load_stm.c b/apps/plugins/mikmod/load_stm.c
index b2537ab68f..994b0e5355 100644
--- a/apps/plugins/mikmod/load_stm.c
+++ b/apps/plugins/mikmod/load_stm.c
@@ -299,6 +299,8 @@ static int STM_Load(int curious)
 	/* set module variables */
 	for(t=0;t<STM_NTRACKERS;t++)
 		if(!memcmp(mh->trackername,STM_Signatures[t],8)) break;
+	if(t == STM_NTRACKERS)
+		return 0;
 	of.modtype   = StrDup(STM_Version[t]);
 	of.songname  = DupStr(mh->songname,20,1); /* make a cstr of songname */
 	of.numpat    = mh->numpat;