diff --git a/roles/calibre-web/defaults/main.yml b/roles/calibre-web/defaults/main.yml
index 68bb38cdc..1e755be57 100644
--- a/roles/calibre-web/defaults/main.yml
+++ b/roles/calibre-web/defaults/main.yml
@@ -12,7 +12,7 @@
 # All above are set in: github.com/iiab/iiab/blob/master/vars/default_vars.yml
 # If nec, change them by editing /etc/iiab/local_vars.yml prior to installing!
 
-calibreweb_version: 0.6.4    # WAS: master
+calibreweb_version: V0.6.4    # WAS: master
 
 calibreweb_venv_path: /usr/local/calibre-web
 calibreweb_exec_path: "{{ calibreweb_venv_path }}/cps.py"