diff --git a/02_the-library-checkouts-database.Rmd b/02_the-library-checkouts-database.Rmd
index 16c9a80..aec1376 100755
--- a/02_the-library-checkouts-database.Rmd
+++ b/02_the-library-checkouts-database.Rmd
@@ -27,6 +27,8 @@ important for determining what types of questions you can answer with SQL!
 
 Here's an ERD for the Library Checkouts database:
 
+<!-- the loans-in-house is spelled wrong (laons-in-house) -->
+
 ![](images/DataDiagram_ucd_library.png)
 
 Lets break down the components of the ERD: