--- a/.taskcluster.yml
+++ b/.taskcluster.yml
@@ -117,16 +117,17 @@ tasks:
             --base-repository='https://hg.mozilla.org/mozilla-central'
             --head-repository="$GECKO_HEAD_REPOSITORY"
             --head-ref="$GECKO_HEAD_REF"
             --head-rev="$GECKO_HEAD_REV"
             --comm-base-repository="$COMM_BASE_REPOSITORY"
             --comm-head-repository="$COMM_HEAD_REPOSITORY"
             --comm-head-ref="$COMM_HEAD_REF"
             --comm-head-rev="$COMM_HEAD_REV"
+            --try-task-config-file=comm/try_task_config.json
 
       artifacts:
         'public':
           type: 'directory'
           path: '/builds/worker/artifacts'
           expires: {$fromNow: '1 year'}
 
     extra: