diff --git a/How-to-use-OVH-domain-api.md b/How-to-use-OVH-domain-api.md
index 54de0ac..7c5401a 100644
--- a/How-to-use-OVH-domain-api.md
+++ b/How-to-use-OVH-domain-api.md
@@ -12,6 +12,9 @@ export OVH_AK="your application key"
 # application secret
 export OVH_AS="your application secret"
 
+# consumer key
+export OVH_CK="your consumer key"
+
 acme.sh --issue -d   mydomain.com   --dns   dns_ovh --server letsencrypt
 
 ```