diff --git a/codelab/README.md b/codelab/README.md
index 7c9e41cb0..448135f03 100644
--- a/codelab/README.md
+++ b/codelab/README.md
@@ -289,7 +289,6 @@ CelAbstractSyntaxTree compile(String expression, String variableName, CelType va
   CelCompiler celCompiler =
       CelCompilerFactory.standardCelCompilerBuilder()
           .addVar(variableName, variableType)
-          .addMessageTypes(AttributeContext.Request.getDescriptor())
           .setResultType(SimpleType.BOOL)
           .build();
   try {