diff --git a/src/html/_style_base.html.template b/src/html/_style_base.html.template
index 0777efeb57..21d047c1b8 100644
--- a/src/html/_style_base.html.template
+++ b/src/html/_style_base.html.template
@@ -1,4 +1,4 @@
-<meta name='viewport' content='width=device-width, viewport-fit=cover'>
+<meta name='viewport' content='width=device-width, user-scalable=no, viewport-fit=cover'>
 <style>
   body {
     font-family: Roboto, sans-serif;