--- libaitrpc/src/builtin.c	2011/09/07 00:53:06	1.3.2.11
+++ libaitrpc/src/builtin.c	2011/09/07 01:19:19	1.3.2.12
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: builtin.c,v 1.3.2.11 2011/09/07 00:53:06 misho Exp $
+* $Id: builtin.c,v 1.3.2.12 2011/09/07 01:19:19 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -246,6 +246,7 @@ rpcBLOBServerVars(rpc_func_t *call, int ic, array_t *i
 
 	if (!len) {
 		AIT_SET_STR(io_array(vals, 0, ait_val_t*), "");
+		pthread_mutex_unlock(&srv->srv_blob.mtx);
 		return 0;
 	}