diff --git a/Discovery/Mainframe/default_cics_transactions.txt b/Discovery/Mainframe/default_cics_transactions.txt
index cf2dd38bf..c63071a2b 100644
--- a/Discovery/Mainframe/default_cics_transactions.txt
+++ b/Discovery/Mainframe/default_cics_transactions.txt
@@ -1,4 +1,4 @@
-TESDOM3
+TESDOM4
 CADP
 CATA
 CATD