diff --git a/Modules/mip_debug.pck b/Modules/mip_debug.pck
index ee9073f..86069ad 100644
--- a/Modules/mip_debug.pck
+++ b/Modules/mip_debug.pck
@@ -24,7 +24,7 @@ CREATE OR REPLACE PACKAGE BODY mip_debug IS
                           ,filename  => p_unit || replace(v('SYSTEM_ENVIRONMENT'),' ','_')||'_debug.txt'
                           ,open_mode => 'A');
   
-    l_output := to_char(SYSDATE
+    l_output := v('APP_SESSION')||':'||to_char(SYSDATE
                        ,'DD/MM/YYYY HH24:MI:SS') || ':' ||p_unit || ':' ||
                 p_line || ':' || p_in;