diff --git a/docs/08-bootstrapping-kubernetes-controllers.md b/docs/08-bootstrapping-kubernetes-controllers.md
index e93bb0c..8e386a7 100644
--- a/docs/08-bootstrapping-kubernetes-controllers.md
+++ b/docs/08-bootstrapping-kubernetes-controllers.md
@@ -121,7 +121,7 @@ ExecStart=/usr/local/bin/kube-controller-manager \\
   --master=http://${INTERNAL_IP}:8080 \\
   --root-ca-file=/var/lib/kubernetes/ca.pem \\
   --service-account-private-key-file=/var/lib/kubernetes/ca-key.pem \\
-  --service-cluster-ip-range=10.32.0.0/16 \\
+  --service-cluster-ip-range=10.32.0.0/24 \\
   --v=2
 Restart=on-failure
 RestartSec=5