diff --git a/components/expression_language/extending.rst b/components/expression_language/extending.rst
index 4c766c4cddc..c070184385d 100644
--- a/components/expression_language/extending.rst
+++ b/components/expression_language/extending.rst
@@ -45,11 +45,11 @@ This method has 3 arguments:
     });
 
     var_dump($expressionLanguage->evaluate('lowercase("HELLO")'));
+    // this will print: hello
 
-This will print ``hello``. Both the **compiler** and **evaluator** are passed
-an ``arguments`` variable as their first argument, which is equal to the
-second argument to ``evaluate()`` or ``compile()`` (e.g. the "values" when
-evaluating or the "names" if compiling).
+In addition to the custom function arguments, the **evaluator** is passed an
+``arguments`` variable as its first argument, which is equal to the second
+argument of ``compile()`` (e.g. the "values" when evaluating an expression).
 
 .. _components-expression-language-provider: