diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index ea072e1..4262478 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -154,7 +154,7 @@
 struct ceph_snap_context {
 	atomic_t nref;
 	u64 seq;
-	int num_snaps;
+	u32 num_snaps;
 	u64 snaps[];
 };