Index: uspace/lib/c/generic/devman.c
===================================================================
--- uspace/lib/c/generic/devman.c	(revision ab3a851d234d11b8478c46256ec3842b20325b31)
+++ uspace/lib/c/generic/devman.c	(revision 398c4d7d49f35ea8c23f7957b353aad549ad55a9)
@@ -116,7 +116,8 @@
 {
 	ipc_call_t answer;
-	async_send_1(phone, DEVMAN_ADD_MATCH_ID, match_id->score, &answer);
+	aid_t req = async_send_1(phone, DEVMAN_ADD_MATCH_ID, match_id->score, &answer);
 	int retval = async_data_write_start(phone, match_id->id, str_size(match_id->id));
-	return retval;	
+	async_wait_for(req, NULL);
+	return retval;
 }