--- libaitrpc/src/builtin.c	2011/09/01 11:39:26	1.3.2.4
+++ libaitrpc/src/builtin.c	2011/09/01 14:28:41	1.3.2.5
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: builtin.c,v 1.3.2.4 2011/09/01 11:39:26 misho Exp $
+* $Id: builtin.c,v 1.3.2.5 2011/09/01 14:28:41 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -265,7 +265,9 @@ rpcBLOBServerState(rpc_func_t *call, int ic, array_t *
 	if (AIT_TYPE(io_array(iv, 0, ait_val_t*)) != i32)
 		return -1;
 
+	pthread_mutex_lock(&srv->srv_mtx);
 	srv->srv_blob.state = AIT_GET_I32(io_array(iv, 0, ait_val_t*));
+	pthread_mutex_unlock(&srv->srv_mtx);
 	return 0;
 }