diff --git a/tooltips.html b/tooltips.html
index c2b9c27..d2f837e 100644
--- a/tooltips.html
+++ b/tooltips.html
@@ -22,7 +22,7 @@ $(document).ready(function(){
     });
 
 /* Set the location where mydoc_tooltips_source.json is. */
-var url = "http://idratherbewriting.com/documentation-theme-jekyll/tooltips.html";
+var url = "http://idratherbewriting.com/documentation-theme-jekyll/tooltips.json";
 
 $.get( url, function( data ) {