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diff --git a/code/untyped_evaluator.ml b/code/untyped_evaluator.ml
index 50092fb2..40ff00b3 100644
--- a/code/untyped_evaluator.ml
+++ b/code/untyped_evaluator.ml
@@ -1,5 +1,5 @@
 (*
-   This is a simplified version of the code at ...
+   This is a simplified version of the code at http://lambda.jimpryor.net/code/untyped_full-1.4.tgz
    You can use this code as follows:
 
    1. First, use a text editor to fill in the (* COMPLETE THIS *) portions.
@@ -15,7 +15,7 @@
       `reduce (App(Lambda("x",Var "x"),Lambda("y",Var "y")))`
       `evaluate (App(Lambda("x",Var "x"),Lambda("y",Var "y")))`
 
-   The two interpreters presented below are (VersionA) a substitute-and-replace
+   The two interpreters presented below are (VersionA) a substitute-and-repeat
    interpreter, and (VersionB) an environment-based interpreter. We discuss the
    differences between these in the course notes.