diff --git a/docs/04-certificate-authority.md b/docs/04-certificate-authority.md
index f8842d9..200fb58 100644
--- a/docs/04-certificate-authority.md
+++ b/docs/04-certificate-authority.md
@@ -342,7 +342,7 @@ kubernetes.pem
 
 ## The Service Account Key Pair
 
-The Kubernetes Controller Manager leverages a key pair to generate and sign service account tokens as describe in the [managing service accounts](https://kubernetes.io/docs/admin/service-accounts-admin/) documentation.
+The Kubernetes Controller Manager leverages a key pair to generate and sign service account tokens as described in the [managing service accounts](https://kubernetes.io/docs/admin/service-accounts-admin/) documentation.
 
 Generate the `service-account` certificate and private key: