diff --git a/src/doc/reference.md b/src/doc/reference.md
index eeae2de827ae6..b50e3af0fdd95 100644
--- a/src/doc/reference.md
+++ b/src/doc/reference.md
@@ -881,7 +881,7 @@ mod foo {
     }
 
     use foo::example::iter; // good: foo is at crate root
-//  use example::iter;      // bad:  core is not at the crate root
+//  use example::iter;      // bad:  example is not at the crate root
     use self::baz::foobaz;  // good: self refers to module 'foo'
     use foo::bar::foobar;   // good: foo is at crate root