diff --git a/sys/dev/snp/snp.c b/sys/dev/snp/snp.c
index 4891666d0f9e..34e3e29d030d 100644
--- a/sys/dev/snp/snp.c
+++ b/sys/dev/snp/snp.c
@@ -544,7 +544,7 @@ snpioctl(dev, cmd, data, flags, td)
 		 * SNPGTTY happy, else we can't know what is device
 		 * major/minor for tty.
 		 */
-		*((dev_t *)data) = snp->snp_target;
+		*((udev_t *)data) = dev2udev(snp->snp_target);
 		break;
 
 	case FIONBIO:
diff --git a/sys/sys/snoop.h b/sys/sys/snoop.h
index 992be9b43aad..026dd7aa1eab 100644
--- a/sys/sys/snoop.h
+++ b/sys/sys/snoop.h
@@ -30,8 +30,8 @@
  * detached from its current tty.
  */
 
-#define SNPSTTY       _IOW('T', 90, dev_t)
-#define SNPGTTY       _IOR('T', 89, dev_t)
+#define SNPSTTY       _IOW('T', 90, udev_t)
+#define SNPGTTY       _IOR('T', 89, udev_t)
 
 /*
  * These values would be returned by FIONREAD ioctl