diff --git a/src/components/TopNavHeader/index.js b/src/components/TopNavHeader/index.js
index 2d0e06561e0ef053594f157cd428b68874cc951d..0b6440e6d40f147fc083daf4fb9ce9a21eb60df0 100644
--- a/src/components/TopNavHeader/index.js
+++ b/src/components/TopNavHeader/index.js
@@ -13,7 +13,11 @@ export default class TopNavHeader extends PureComponent {
 
   static getDerivedStateFromProps(props) {
     return {
-      maxWidth: (props.contentWidth === 'Fixed' ? 1200 : window.innerWidth) - 280 - 165 - 40,
+      maxWidth:
+        (props.contentWidth === 'Fixed' && window.innerWidth > 1200 ? 1200 : window.innerWidth) -
+        280 -
+        120 -
+        40,
     };
   }