diff --git a/sbin/restore/tape.c b/sbin/restore/tape.c
index 21ac8b11294f..602ce61a81aa 100644
--- a/sbin/restore/tape.c
+++ b/sbin/restore/tape.c
@@ -497,7 +497,7 @@ setdumpnum()
 		rmtioctl(MTFSF, dumpnum - 1);
 	else
 #endif
-		if (ioctl(mt, (int)MTIOCTOP, (char *)&tcom) < 0)
+		if (ioctl(mt, MTIOCTOP, (char *)&tcom) < 0)
 			fprintf(stderr, "ioctl MTFSF: %s\n", strerror(errno));
 }