diff --git a/roles/repos/tasks/main.yml b/roles/repos/tasks/main.yml
index 62a5ce7607f9d78d2015cf0c94f7b7c018e9521f..945e0bd2d394c5a7a0786c5b265cd426a89c566d 100644
--- a/roles/repos/tasks/main.yml
+++ b/roles/repos/tasks/main.yml
@@ -24,7 +24,7 @@
   copy: src=etc/yum.repos.d/EGI-trustanchors.repo
         dest=/etc/yum.repos.d/EGI-trustanchors.repo backup=no
         owner=root group=root mode=0644
-  when: inventory_hostname in groups.standalone or inventory_hostname in groups.webui or ca_bundle_install==true
+  when: inventory_hostname in groups.standalone or inventory_hostname in groups.webui or (ca_bundle_install is defined and ca_bundle_install)
 
 - name: Install cloudera-cdh5 repo
   tags: cloudera-cdh5_repo