diff --git a/doc/articles/authentication-for-private-packages.md b/doc/articles/authentication-for-private-packages.md
index 11da2f035..b722df236 100644
--- a/doc/articles/authentication-for-private-packages.md
+++ b/doc/articles/authentication-for-private-packages.md
@@ -106,7 +106,7 @@ section or directly in the repository definition.
 
 The final option to supply Composer with credentials is to use the `COMPOSER_AUTH` environment variable.
 These variables can be either passed as command line variables or set in actual environment variables.
-Read more about the usage of this environment variable [here](../03-cli.md#COMPOSER_AUTH).
+Read more about the usage of this environment variable [here](../03-cli.md#composer-auth).
 
 # Authentication methods