diff --git a/sys/dev/vt/vt.h b/sys/dev/vt/vt.h
index 66d05c2a1afd..eb0ce1fab7f8 100644
--- a/sys/dev/vt/vt.h
+++ b/sys/dev/vt/vt.h
@@ -78,7 +78,13 @@ one 'device sc' or 'device vt'"
 #endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */
 
 #define	SC_DRIVER_NAME	"vt"
+#ifdef VT_DEBUG
 #define	DPRINTF(_l, ...)	if (vt_debug > (_l)) printf( __VA_ARGS__ )
+#define VT_CONSOLECTL_DEBUG
+#define VT_SYSMOUSE_DEBUG
+#else
+#define	DPRINTF(_l, ...)	do {} while (0)
+#endif
 #define	ISSIGVALID(sig)	((sig) > 0 && (sig) < NSIG)
 
 #define	VT_SYSCTL_INT(_name, _default, _descr)				\
diff --git a/sys/dev/vt/vt_consolectl.c b/sys/dev/vt/vt_consolectl.c
index f9c451780fc7..df8b341d4132 100644
--- a/sys/dev/vt/vt_consolectl.c
+++ b/sys/dev/vt/vt_consolectl.c
@@ -61,8 +61,10 @@ consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
 		return (0);
 	}
 	default:
+#ifdef VT_CONSOLECTL_DEBUG
 		printf("consolectl: unknown ioctl: %c:%lx\n",
 		    (char)IOCGROUP(cmd), IOCBASECMD(cmd));
+#endif
 		return (ENOIOCTL);
 	}
 }
diff --git a/sys/dev/vt/vt_sysmouse.c b/sys/dev/vt/vt_sysmouse.c
index 73ef39d735f2..92eee3c4b8c1 100644
--- a/sys/dev/vt/vt_sysmouse.c
+++ b/sys/dev/vt/vt_sysmouse.c
@@ -376,8 +376,10 @@ sysmouse_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag,
 	case MOUSE_MOUSECHAR:
 		return (0);
 	default:
+#ifdef VT_SYSMOUSE_DEBUG
 		printf("sysmouse: unknown ioctl: %c:%lx\n",
 		    (char)IOCGROUP(cmd), IOCBASECMD(cmd));
+#endif
 		return (ENOIOCTL);
 	}
 }