diff --git a/kernel/futex.c b/kernel/futex.c
index fe28dc2..7a0a4ed 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -355,8 +355,8 @@
 	int ret;
 
 	down_read(&mm->mmap_sem);
-	ret = get_user_pages(current, mm, (unsigned long)uaddr,
-			     1, 1, 0, NULL, NULL);
+	ret = fixup_user_fault(current, mm, (unsigned long)uaddr,
+			       FAULT_FLAG_WRITE);
 	up_read(&mm->mmap_sem);
 
 	return ret < 0 ? ret : 0;