diff --git a/roles/repospanner/server/tasks/main.yml b/roles/repospanner/server/tasks/main.yml
index 6e37be40b3..4d6bd1262f 100644
--- a/roles/repospanner/server/tasks/main.yml
+++ b/roles/repospanner/server/tasks/main.yml
@@ -86,7 +86,7 @@
   - config
 
 - name: Join node
-  command: repospanner --config /etc/repospanner/config.yml serve --joinnode {{ join_repospanner_node }}
+  command: repospanner --config /etc/repospanner/config.yml serve --joinnode https://{{ join_repospanner_node }}:8443/
   args:
     creates: /var/lib/repospanner/state/state.json
   become: yes