diff --git a/docs/source/configure.rst b/docs/source/configure.rst
index 9f310293..30c614ac 100644
--- a/docs/source/configure.rst
+++ b/docs/source/configure.rst
@@ -26,7 +26,7 @@ Once again, in order of least to most authoritative:
     To check your configuration when using the command line or the
     configuration file you can run the following command::
 
-        $ gunicorn --check-config
+        $ gunicorn --check-config APP_MODULE
 
     It also allows you to know if your application can be launched.