diff --git a/src/theme/mui.js b/src/theme/mui.js
index c78b3012..d88e8ccf 100644
--- a/src/theme/mui.js
+++ b/src/theme/mui.js
@@ -15,7 +15,6 @@ import {
   regularFont,
   boldFont,
   buttonLargeFontSize,
-  border,
   xs,
   secondaryText,
 } from './variables'
@@ -149,7 +148,6 @@ export default createMuiTheme({
         color: secondary,
         order: 0,
         marginTop: '0px',
-        backgroundColor: border,
         zIndex: 1, // for firefox
       },
     },