diff --git a/docs/en/index.md b/docs/en/index.md
index 25e10f0..b495300 100644
--- a/docs/en/index.md
+++ b/docs/en/index.md
@@ -9,7 +9,7 @@ existing records than a basic autocomplete. It uses the search context construct
 class to provide the search form.
 
 ```php
-$grid->getConfig()->addComponent(new GridFieldAddExistingSearchButton()));
+$grid->getConfig()->addComponent(new GridFieldAddExistingSearchButton());
 ```
 
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