diff --git a/pyIocApp/setup.c b/pyIocApp/setup.c
index a15fcb5..61c3861 100644
--- a/pyIocApp/setup.c
+++ b/pyIocApp/setup.c
@@ -123,7 +123,7 @@ static void cleanupPrep(initHookState state)
     /* register a second time to better our chances of running
      * first on exit.  eg. before cacExitHandler()
      */
-    if(state==initHookAfterIocRunning)
+    if(state==initHookAfterInitDevSup)
         epicsAtExit(&cleanupPy, NULL);
 }