--- rpc_server/srv_samr_util.c	Wed Mar 16 15:24:15 2005
+++ rpc_server/srv_samr_util.c	Wed Mar 16 15:24:28 2005
@@ -264,7 +264,7 @@
 
 		DEBUG(15,("INFO_21 LOGON_HRS.HOURS: %s -> %s\n",pdb_get_hours(to),from->logon_hrs.hours));
 		pdb_sethexhours(old, pdb_get_hours(to));
-		pdb_sethexhours(new, (const char *)from->logon_hrs.hours);
+		pdb_sethexhours(new, (const unsigned char *)from->logon_hrs.hours);
 		if (!strequal(old, new)) {
 			pdb_set_hours(to, from->logon_hrs.hours, PDB_CHANGED);
 		}