diff --git a/.github/workflows/root-ci-config/buildconfig/alma9-modules_off.txt b/.github/workflows/root-ci-config/buildconfig/alma9-modules_off.txt
index 6a5a834c3f425..49a308c04a656 100644
--- a/.github/workflows/root-ci-config/buildconfig/alma9-modules_off.txt
+++ b/.github/workflows/root-ci-config/buildconfig/alma9-modules_off.txt
@@ -1,3 +1,4 @@
+CMAKE_CXX_STANDARD=20
 builtin_vdt=ON
 pythia8=ON
 runtime_cxxmodules=OFF
diff --git a/.github/workflows/root-ci.yml b/.github/workflows/root-ci.yml
index a0638cec307bd..42c8e4dab9b62 100644
--- a/.github/workflows/root-ci.yml
+++ b/.github/workflows/root-ci.yml
@@ -403,7 +403,6 @@ jobs:
             platform_config: alma9-modules_off
             is_special: true
             property: modules_off
-            overrides: ["CMAKE_CXX_STANDARD=20"]
           - image: alma9
             platform_config: alma9-march_native
             is_special: true