diff --git a/docs/types.rst b/docs/types.rst
index 6702ce08f..187f62c1e 100644
--- a/docs/types.rst
+++ b/docs/types.rst
@@ -306,6 +306,8 @@ the `.length` member.
       function f(uint len) {
         uint[] memory a = new uint[](7);
         bytes memory b = new bytes(len);
+        // Here we have a.length == 7 and b.length == len
+        a[6] = 8;
       }
     }