diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index 0c82c80..2ca6bae 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -97,10 +97,10 @@ struct xfrm_algo {
 };
 
 struct xfrm_algo_aead {
-	char	alg_name[64];
-	int	alg_key_len;	/* in bits */
-	int	alg_icv_len;	/* in bits */
-	char	alg_key[0];
+	char		alg_name[64];
+	unsigned int	alg_key_len;	/* in bits */
+	unsigned int	alg_icv_len;	/* in bits */
+	char		alg_key[0];
 };
 
 struct xfrm_stats {