diff --git a/themes/bitix/layouts/partials/html-head-ad-manager.html b/themes/bitix/layouts/partials/html-head-ad-manager.html
index c20e3bd101..5872cdf7e4 100644
--- a/themes/bitix/layouts/partials/html-head-ad-manager.html
+++ b/themes/bitix/layouts/partials/html-head-ad-manager.html
@@ -31,11 +31,13 @@
         .build();
       var sidebarLeftMapping = googletag.sizeMapping()
         .addSize([1750, 0], [[300, 600]])
+        .addSize([0, 0], [])
         .build();
       var sidebarRightMapping = googletag.sizeMapping()
         .addSize([1440, 0], [[300, 600]])
         .addSize([1366, 0], [[250, 600]])
         .addSize([1280, 0], [[160, 600]])
+        .addSize([0, 0], [])
         .build();
 
       headerSlot.defineSizeMapping(headerMapping);