diff --git a/modules/openstack_project/manifests/gerrit.pp b/modules/openstack_project/manifests/gerrit.pp
index a7e3e8b600..428ad91328 100644
--- a/modules/openstack_project/manifests/gerrit.pp
+++ b/modules/openstack_project/manifests/gerrit.pp
@@ -126,7 +126,7 @@ class openstack_project::gerrit (
     commentlinks                    => [
       {
         name  => 'changeid',
-        match => '(I[0-9a-f]{8,40})',
+        match => '(I?[0-9a-f]{8,40})',
         link  => '#q,$1,n,z',
       },
       {