diff --git a/docs/common-patterns.rst b/docs/common-patterns.rst
index 7e09f5346..c62b5acab 100644
--- a/docs/common-patterns.rst
+++ b/docs/common-patterns.rst
@@ -194,6 +194,7 @@ restrictions highly readable.
 
         function forceOwnerChange(address _newOwner)
             public
+            payable
             costs(200 ether)
         {
             owner = _newOwner;