diff --git a/sys/dev/hatm/if_hatm_tx.c b/sys/dev/hatm/if_hatm_tx.c
index b084b9e17ecf..3f0e66c38a15 100644
--- a/sys/dev/hatm/if_hatm_tx.c
+++ b/sys/dev/hatm/if_hatm_tx.c
@@ -94,7 +94,7 @@ __FBSDID("$FreeBSD$");
 #define	hatm_get_txmbuf(SC)						\
 	do {								\
 		if (++sc->txmbuf > 20000)				\
-			DBG(sc,	TX ("txmbuf %u", sc->txmbuf));		\
+			DBG(sc,	TX, ("txmbuf %u", sc->txmbuf));		\
 		else if (sc->txmbuf == 1)				\
 			DBG(sc, TX, ("txmbuf leaves 0"));		\
 	} while (0)