diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 68452b7..0d34325 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -239,7 +239,7 @@ static inline void dump_rawmsg(enum debuglevel level, const char *tag,
 		return;
 
 	l = CAPIMSG_LEN(data);
-	if (l < 12) {
+	if (l <= 12) {
 		gig_dbg(level, "%s: ??? LEN=%04d", tag, l);
 		return;
 	}