diff --git a/source3/lib/netapi/group.c b/source3/lib/netapi/group.c
index 3c1618e77b9..9813f7eacb3 100644
--- a/source3/lib/netapi/group.c
+++ b/source3/lib/netapi/group.c
@@ -1640,6 +1640,7 @@ WERROR NetGroupSetUsers_r(struct libnetapi_ctx *ctx,
 
 	ZERO_STRUCT(connect_handle);
 	ZERO_STRUCT(domain_handle);
+	ZERO_STRUCT(group_handle);
 
 	if (!r->in.buffer) {
 		return WERR_INVALID_PARAM;