diff --git a/docs/layout-of-source-files.rst b/docs/layout-of-source-files.rst
index f9d197b7b..81faf816b 100644
--- a/docs/layout-of-source-files.rst
+++ b/docs/layout-of-source-files.rst
@@ -198,7 +198,7 @@ for the two input parameters and two returned values.
     pragma solidity ^0.4.0;
 
     /** @title Shape calculator. */
-    contract shapeCalculator {
+    contract ShapeCalculator {
         /** @dev Calculates a rectangle's surface and perimeter.
           * @param w Width of the rectangle.
           * @param h Height of the rectangle.