diff --git a/lib/ansible/modules/network/ios/ios_config.py b/lib/ansible/modules/network/ios/ios_config.py
index 8576ef0989..c5db4331b1 100644
--- a/lib/ansible/modules/network/ios/ios_config.py
+++ b/lib/ansible/modules/network/ios/ios_config.py
@@ -248,7 +248,7 @@ EXAMPLES = """
 
 - name: check the running-config against master config
   ios_config:
-    diff_config: intended
+    diff_against: intended
     intended_config: "{{ lookup('file', 'master.cfg') }}"
 
 - name: check the startup-config against the running-config