diff --git a/kernel/bpf/xskmap.c b/kernel/bpf/xskmap.c
index 47147c9e184dd8bc34981031e9b4d221df7aa31a..e37cc1741db83bb49a1491ef91fbb6e2b7533e83 100644
--- a/kernel/bpf/xskmap.c
+++ b/kernel/bpf/xskmap.c
@@ -203,7 +203,7 @@ static int xsk_map_delete_elem(struct bpf_map *map, void *key)
 {
 	struct xsk_map *m = container_of(map, struct xsk_map, map);
 	struct xdp_sock *old_xs;
-	int k = *(u32 *)key;
+	u32 k = *(u32 *)key;
 
 	if (k >= map->max_entries)
 		return -EINVAL;