diff --git a/snap.html b/snap.html
index 96f1fe8f..2e34abcb 100755
--- a/snap.html
+++ b/snap.html
@@ -2,6 +2,7 @@
 <html>
     <head>
         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
         <title>Snap! Build Your Own Blocks 6.1.3 - dev -</title>
         <link rel="icon" href="src/favicon.ico">
         <script src="src/morphic.js?version=2020-07-23"></script>
