diff --git a/docs/configuration/configuration.md b/docs/configuration/configuration.md
index dbaa95bfe..f168192a2 100644
--- a/docs/configuration/configuration.md
+++ b/docs/configuration/configuration.md
@@ -738,7 +738,6 @@ Available meta labels:
 * `__meta_kubernetes_service_labelpresent_<labelname>`: `true` for each label of the service object.
 * `__meta_kubernetes_service_name`: The name of the service object.
 * `__meta_kubernetes_service_port_name`: Name of the service port for the target.
-* `__meta_kubernetes_service_port_number`: Number of the service port for the target.
 * `__meta_kubernetes_service_port_protocol`: Protocol of the service port for the target.
 
 #### `pod`