diff --git a/tasks/pre_install_apt.yml b/tasks/pre_install_apt.yml
index df31192..ea06824 100644
--- a/tasks/pre_install_apt.yml
+++ b/tasks/pre_install_apt.yml
@@ -38,7 +38,7 @@
   retries: 5
   delay: 2
   when:
-    - uca_enable
+    - uca_enable | bool
   tags:
     - add-uca-repo