diff --git a/present/static/slides.js b/present/static/slides.js
index 03dd6e7..863e7ac 100644
--- a/present/static/slides.js
+++ b/present/static/slides.js
@@ -273,6 +273,7 @@
   } else {
     touchDX = event.touches[0].pageX - touchStartX;
     touchDY = event.touches[0].pageY - touchStartY;
+    event.preventDefault();
   }
 };