diff --git a/config/cscs-ci.py b/config/cscs-ci.py
index 1ad14bbc3d..32a4dc8e4a 100644
--- a/config/cscs-ci.py
+++ b/config/cscs-ci.py
@@ -55,7 +55,7 @@
             'hostnames': [
                 'dom'
             ],
-            'modules_system': 'tmod4',
+            'modules_system': 'tmod',
             'resourcesdir': '/apps/common/UES/reframe/resources',
             'partitions': [
                 {
diff --git a/config/cscs.py b/config/cscs.py
index 9d39a442bb..c1f39817d8 100644
--- a/config/cscs.py
+++ b/config/cscs.py
@@ -285,7 +285,7 @@
             'hostnames': [
                 'dom'
             ],
-            'modules_system': 'tmod4',
+            'modules_system': 'tmod',
             'resourcesdir': '/apps/common/UES/reframe/resources',
             'partitions': [
                 {