diff --git a/zconf/Makefile b/zconf/Makefile
index 5ca5e8a0..44159d74 100644
--- a/zconf/Makefile
+++ b/zconf/Makefile
@@ -17,8 +17,6 @@ clean: $(SUB_DIRS)
 install:	install-scripts install-manpages install-usrsbin-scripts $(SUB_DIRS)
 	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 lsznet.raw \
 		$(DESTDIR)$(TOOLS_LIBDIR)
-	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 znetcontrolunits \
-		$(DESTDIR)$(TOOLS_LIBDIR)
 
 install-scripts:	$(SCRIPTS)
 	@for i in $^; do \
diff --git a/zconf/lsznet.raw b/zconf/lsznet.raw
index 2488db37..5c0e3c22 100755
--- a/zconf/lsznet.raw
+++ b/zconf/lsznet.raw
@@ -25,10 +25,6 @@ function error() {
 	exit 1
 }
 
-# currently requires bash version 3.0 or later
-
-. /lib/s390-tools/znetcontrolunits
-
 # The arrays (among other things) should be adapted, if any of those device
 # drivers start supporting different CU types/models.
 
diff --git a/zconf/znetcontrolunits b/zconf/znetcontrolunits
deleted file mode 100644
index 8bca8304..00000000
--- a/zconf/znetcontrolunits
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-#
-# znetcontrolunits - define some common control unit mappings
-#
-# This definitions are not intended to be used as standalone tool, but should be
-# used from other tools like a library. E.g. znetconf is one exploiter
-# of them.
-#
-# Copyright IBM Corp. 2008, 2017
-#
-# s390-tools is free software; you can redistribute it and/or modify
-# it under the terms of the MIT license. See LICENSE for details.
-#
-
-# The arrays (among other things) should be adapted, if any of those device
-# drivers start supporting different CU types/models.
-
-readonly -a CU=(
-    1731/01
-    1731/05
-    3088/08
-    3088/1f
-    3088/1e
-    3088/60
-    1731/02
-    1731/02
-)
-#   1731/06 (OSN) is no longer supported