diff --git a/ca.conf b/ca.conf
index eb17657..28d95ee 100644
--- a/ca.conf
+++ b/ca.conf
@@ -124,7 +124,7 @@ extendedKeyUsage     = clientAuth, serverAuth
 keyUsage             = critical, digitalSignature, keyEncipherment
 nsCertType           = client
 nsComment            = "Kube Controller Manager Certificate"
-subjectAltName       = DNS:kube-proxy, IP:127.0.0.1
+subjectAltName       = DNS:kube-controller-manager, IP:127.0.0.1
 subjectKeyIdentifier = hash
 
 [kube-controller-manager_distinguished_name]
@@ -203,4 +203,4 @@ extendedKeyUsage     = clientAuth
 keyUsage             = critical, digitalSignature, keyEncipherment
 nsCertType           = client
 nsComment            = "Admin Client Certificate"
-subjectKeyIdentifier = hash
\ No newline at end of file
+subjectKeyIdentifier = hash