diff --git a/sys/kern/kern_umtx.c b/sys/kern/kern_umtx.c
index f71e6ab897a..acff6947430 100644
--- a/sys/kern/kern_umtx.c
+++ b/sys/kern/kern_umtx.c
@@ -3431,7 +3431,7 @@ umtx_copyin_robust_lists(const void *uaddr, size_t size,
 
 	if (size > sizeof(*rb))
 		return (EINVAL);
-	return (copyin(uaddr, &rb, size));
+	return (copyin(uaddr, rb, size));
 }
 
 static int