diff --git a/book-4-lesson-2.module b/book-4-lesson-2.module
index 13777afc..c9c736e3 100644
--- a/book-4-lesson-2.module
+++ b/book-4-lesson-2.module
@@ -1858,7 +1858,7 @@ EXAMPLE
 PROMPT: Asher ... Azure {bk04-l2d-f2-ex.mp3}
 ANSWER: d
 
-PROMPT: measure ... measure {bk04-l2d-f2-01.mp3}
+PROMPT: mesher ... measure {bk04-l2d-f2-01.mp3}
 ANSWER: d
 
 PROMPT: glacier ... glazier {bk04-l2d-f2-02.mp3}