diff --git a/templates/requirements.yml b/templates/requirements.yml
index 7dfb1c7..f9b79d2 100644
--- a/templates/requirements.yml
+++ b/templates/requirements.yml
@@ -35,7 +35,7 @@
 - src: git+https://github.com/lingawakad/ansible-role-calibre-web.git
   version: v0.6.21-1
   name: calibre-web
-  activation_prefix: calibre-web
+  activation_prefix: calibre-web_
 - src: git+https://github.com/nielscil/ansible-role-changedetection.git
   version: v0.45.23-0
   name: changedetection