diff --git a/daemon/nfs41_rpc.c b/daemon/nfs41_rpc.c
index 0c7f861..f92f313 100644
--- a/daemon/nfs41_rpc.c
+++ b/daemon/nfs41_rpc.c
@@ -66,10 +66,10 @@ static int get_client_for_netaddr(
     }
     DPRINTF(1, ("callback function 0x%p args 0x%p\n", nfs41_handle_callback, rpc));
     client = clnt_tli_create(RPC_ANYFD, nconf, addr, NFS41_RPC_PROGRAM,
-        NFS41_RPC_VERSION, wsize, rsize, rpc ? proc_cb_compound_res : NULL,
+        NFS41_RPC_VERSION, wsize, rsize, rpc ? (int (*)(void*, void*))proc_cb_compound_res : NULL,
         rpc ? nfs41_handle_callback : NULL, rpc ? rpc : NULL);
-    if (client) {
-        *client_out = client;
+    if (client) {
+        *client_out = client;
         status = NO_ERROR;
     }