diff --git a/sig-cluster-lifecycle/README.md b/sig-cluster-lifecycle/README.md
index 7c49081df..af31639b4 100644
--- a/sig-cluster-lifecycle/README.md
+++ b/sig-cluster-lifecycle/README.md
@@ -67,6 +67,8 @@ The following subprojects are owned by sig-cluster-lifecycle:
 - **cluster-addons**
   - Owners:
     - https://raw.githubusercontent.com/kubernetes-sigs/addon-operators/master/OWNERS
+  - Contact
+    - Slack: [#cluster-addons](https://kubernetes.slack.com/messages/cluster-addons)
 - **cluster-api**
   - Owners:
     - https://raw.githubusercontent.com/kubernetes-sigs/cluster-api/master/OWNERS
diff --git a/sigs.yaml b/sigs.yaml
index 105d3472e..9872d9519 100644
--- a/sigs.yaml
+++ b/sigs.yaml
@@ -912,6 +912,8 @@ sigs:
     owners:
     - https://raw.githubusercontent.com/kubernetes-incubator/bootkube/master/OWNERS
   - name: cluster-addons
+    contact:
+      slack: cluster-addons
     owners:
     - https://raw.githubusercontent.com/kubernetes-sigs/addon-operators/master/OWNERS
   - name: cluster-api