diff --git a/lib/libypclnt/ypclnt_passwd.c b/lib/libypclnt/ypclnt_passwd.c
index c7ee7eafb108..86844eb48e99 100644
--- a/lib/libypclnt/ypclnt_passwd.c
+++ b/lib/libypclnt/ypclnt_passwd.c
@@ -65,7 +65,7 @@ int
 ypclnt_havepasswdd(ypclnt_t *ypclnt)
 {
 	struct netconfig *nc = NULL;
-	void *localhandle = 0;
+	void *localhandle = NULL;
 	CLIENT *clnt = NULL;
 	int ret;
 
@@ -139,7 +139,7 @@ yppasswd_local(ypclnt_t *ypclnt, const struct passwd *pwd)
 	struct master_yppasswd yppwd;
 	struct rpc_err rpcerr;
 	struct netconfig *nc = NULL;
-	void *localhandle = 0;
+	void *localhandle = NULL;
 	CLIENT *clnt = NULL;
 	int ret, *result;