diff --git a/docker-compose.override.hipchat_example.yml b/docker-compose.override.hipchat_example.yml
index 224750bf..f92b28a6 100644
--- a/docker-compose.override.hipchat_example.yml
+++ b/docker-compose.override.hipchat_example.yml
@@ -1,6 +1,6 @@
 cog:
   environment:
-    - COG_HIPCHAT_ENABLED=true
+    - COG_HIPCHAT_ENABLED=1
     - HIPCHAT_API_TOKEN=${HIPCHAT_API_TOKEN}
     - HIPCHAT_JABBER_ID=${HIPCHAT_JABBER_ID}
     - HIPCHAT_JABBER_PASSWORD=${HIPCHAT_JABBER_PASSWORD}
diff --git a/docker-compose.override.slack_example.yml b/docker-compose.override.slack_example.yml
index c41b251c..36a505b3 100644
--- a/docker-compose.override.slack_example.yml
+++ b/docker-compose.override.slack_example.yml
@@ -1,6 +1,6 @@
 cog:
   environment:
-    - COG_SLACK_ENABLED=true
+    - COG_SLACK_ENABLED=1
     - SLACK_API_TOKEN=${SLACK_API_TOKEN}
     - COG_BOOTSTRAP_USERNAME=admin
     - COG_BOOTSTRAP_PASSWORD=changeme
diff --git a/docker-compose.yml b/docker-compose.yml
index 7afbc3fd..68ae2c7a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -37,8 +37,6 @@ postgres:
   environment:
     - POSTGRES_USER=cog
     - POSTGRES_PASSWORD=cog
-    - COG_SLACK_ENABLED=false
-    - COG_HIPCHAT_ENABLED=false
 
 cog:
   image: operable/cog:0.15