diff --git a/Making-OpenSeadragon-Plugins.md b/Making-OpenSeadragon-Plugins.md
index 48e1eec..1995f71 100644
--- a/Making-OpenSeadragon-Plugins.md
+++ b/Making-OpenSeadragon-Plugins.md
@@ -12,7 +12,7 @@ Tips:
 
 Example:
 
-```
+```JavaScript
 (function($) {
   $.myPlugin = function(options) {
     options = options || {};