diff --git a/startup.script_part2 b/startup.script_part2
index f5e26a0..52d4e3b 100644
--- a/startup.script_part2
+++ b/startup.script_part2
@@ -12,4 +12,6 @@ require "iocinfo", getenv("iocinfo_VERSION")?getenv("iocinfo_VERSION"):"ifexists
 
 iocInit
 
+atExitDebug = 1
+
 # end of startup.script_part2