diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 0a43def..133d558d 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -167,7 +167,8 @@
 	int val2 = 0;
 	int cmd = op & FUTEX_CMD_MASK;
 
-	if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI)) {
+	if (utime && (cmd == FUTEX_WAIT || cmd == FUTEX_LOCK_PI ||
+		      cmd == FUTEX_WAIT_BITSET)) {
 		if (get_compat_timespec(&ts, utime))
 			return -EFAULT;
 		if (!timespec_valid(&ts))