diff --git a/bin/cfg b/bin/cfg
index 0f8f200..3c7c0ef 100755
--- a/bin/cfg
+++ b/bin/cfg
@@ -261,27 +261,27 @@ $usage = Cli\manpage( basename(__FILE__), $version,
 				 .PHP_EOL
 				.'Advance usage:'
             	 .PHP_EOL
-				 .'cfg write extension_name \'module:enabled=true\''
+				 .'cfg write prefix \'module:enabled=true\''
 				 .PHP_EOL
 				 .PHP_EOL
-				 .'#Instance write:'
+				 .'#Site specific write:'
 				 .PHP_EOL
-				 .'cfg write extension_name \'module:enabled=true\' --siteDir=owner_xyz'
+				 .'cfg write prefix \'module:enabled=true\' --siteDir=owner_xyz'
 				 .PHP_EOL
 				 .PHP_EOL
 				 .'#Batch write from JSON file:'
 				 .PHP_EOL
-				 .'cfg write extension_name --siteDir=owner_xyz -i /tmp/extension.json'
+				 .'cfg write prefix --siteDir=owner_xyz -i /tmp/extension.json'
 				 .PHP_EOL
 				 .PHP_EOL
 				 .'#Batch write from JSON string:'
 				 .PHP_EOL
-				 .'cfg write extension_name \'module={"enabled":true,"timeout":30,"label":"example"}\' --siteDir=owner_xyz'
+				 .'cfg write prefix \'module={"enabled":true,"timeout":30,"label":"example"}\' --siteDir=owner_xyz'
 				 .PHP_EOL
 				 .PHP_EOL
-				 .'#Read merged value for an instance:'
+				 .'#Read merged value for a site:'
 				 .PHP_EOL
-				 .'cfg show extension_name module:enabled --siteDir=owner_xyz'
+				 .'cfg show prefix module:enabled --siteDir=owner_xyz'
 				 .PHP_EOL
 		]
 ).PHP_EOL;