diff --git a/sys/dev/isp/isp_target.c b/sys/dev/isp/isp_target.c
index f1583d313332..b7b27c7d6955 100644
--- a/sys/dev/isp/isp_target.c
+++ b/sys/dev/isp/isp_target.c
@@ -49,7 +49,7 @@
 #endif
 
 #ifdef	ISP_TARGET_MODE
-int isp_tdebug = 1;
+int isp_tdebug = 0;
 
 static void isp_got_msg __P((struct ispsoftc *, int, in_entry_t *));
 static void isp_got_msg_fc __P((struct ispsoftc *, int, in_fcentry_t *));