diff --git a/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/correct_value.pass.sh b/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/correct_value.pass.sh
index 53c9d8f1579..8302e0ba894 100644
--- a/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/correct_value.pass.sh
+++ b/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/correct_value.pass.sh
@@ -3,6 +3,6 @@
 
 . $SHARED/dconf_test_functions.sh
 
-yum -y install dconf
+install_dconf_and_gdm_if_needed
 clean_dconf_settings
 add_dconf_lock "org/gnome/desktop/screensaver" "idle-activation-enabled" "local.d" "00-security-settings"
diff --git a/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/wrong_value.fail.sh b/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/wrong_value.fail.sh
index 33a439cbb6c..35c6e417ad9 100644
--- a/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/wrong_value.fail.sh
+++ b/linux_os/guide/system/software/gnome/gnome_screen_locking/dconf_gnome_screensaver_idle_activation_locked/tests/wrong_value.fail.sh
@@ -3,5 +3,5 @@
 
 . $SHARED/dconf_test_functions.sh
 
-yum -y install dconf
+install_dconf_and_gdm_if_needed
 clean_dconf_settings