diff --git a/roles/robosignatory/tasks/main.yml b/roles/robosignatory/tasks/main.yml
index a9515891e9..32825dbb26 100644
--- a/roles/robosignatory/tasks/main.yml
+++ b/roles/robosignatory/tasks/main.yml
@@ -15,6 +15,7 @@
     name: robosignatory
     state: present
     system: yes
+    gid: 988
   tags:
   - config
   - robosignatory