diff --git a/jquery.flot.navigate.js b/jquery.flot.navigate.js
index b5949b4..10256b8 100644
--- a/jquery.flot.navigate.js
+++ b/jquery.flot.navigate.js
@@ -135,6 +135,7 @@ Licensed under the MIT License ~ http://threedubmedia.googlecode.com/files/MIT-L
         }
 
         function onMouseWheel(e, delta) {
+            e.preventDefault();
             onZoomClick(e, delta < 0);
             return false;
         }