diff --git a/roles/custom/matrix_playbook_migration/tasks/validate_config.yml b/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
index 4c391ed6e..7d680d529 100644
--- a/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
+++ b/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
@@ -227,7 +227,7 @@
   block:
     - ansible.builtin.set_fact:
         matrix_playbook_migration_postmoogle_migration_vars: |-
-          {{ vars | dict2items | selectattr('key', 'match', 'matrix_postmoogle_.*') | list | items2dict }}
+          {{ vars | dict2items | selectattr('key', 'match', 'matrix_bot_postmoogle_.*') | list | items2dict }}
 
     - name: (Deprecation) Catch and report matrix_bot_postmoogle variables
       ansible.builtin.fail: