diff --git a/inventory/group_vars/pdc-web b/inventory/group_vars/pdc-web
index f07deb7fe3..59073dad2c 100644
--- a/inventory/group_vars/pdc-web
+++ b/inventory/group_vars/pdc-web
@@ -29,6 +29,5 @@ fedmsg_certs:
 - service: pdc
   owner: root
   group: apache
-  # We don't have notifications from PDC yet, but when we do, add them here.
-  #can_send:
-  #- pdc.somethingorother
+  can_send:
+  - pdc.compose
diff --git a/inventory/group_vars/pdc-web-stg b/inventory/group_vars/pdc-web-stg
index 1c55f0735b..a7e45f96c4 100644
--- a/inventory/group_vars/pdc-web-stg
+++ b/inventory/group_vars/pdc-web-stg
@@ -29,6 +29,5 @@ fedmsg_certs:
 - service: pdc
   owner: root
   group: apache
-  # We don't have notifications from PDC yet, but when we do, add them here.
-  #can_send:
-  #- pdc.somethingorother
+  can_send:
+  - pdc.compose
diff --git a/roles/pdc/frontend/templates/settings_local.py b/roles/pdc/frontend/templates/settings_local.py
index 2d021a5206..256260c3da 100644
--- a/roles/pdc/frontend/templates/settings_local.py
+++ b/roles/pdc/frontend/templates/settings_local.py
@@ -10,6 +10,11 @@
 #       settings, please remember to update your settings_local.py
 #       when the items you extended got updated in settings.py.
 
+# Turn on the fedmsg publishing plugin.
+MESSAGE_BUS = {
+        'MLP': 'fedmsg',  # MLP: Messaging Library Package
+}
+
 REST_FRAMEWORK = {
     'DEFAULT_AUTHENTICATION_CLASSES': (
         'pdc.apps.auth.authentication.TokenAuthenticationWithChangeSet',