diff --git a/packages/kotti-ui/source/kotti-style/_variables.scss b/packages/kotti-ui/source/kotti-style/_variables.scss
index ea18b4c4bd..26b59a91dc 100644
--- a/packages/kotti-ui/source/kotti-style/_variables.scss
+++ b/packages/kotti-ui/source/kotti-style/_variables.scss
@@ -81,6 +81,7 @@ $size-md: 840px !default;
 $size-lg: 960px !default;
 $size-xl: 1280px !default;
 $size-2x: 1440px !default;
+$size-xxl: 1920px !default;
 
 $responsive-breakpoint: $size-xs !default;