diff --git a/ext/css/display.css b/ext/css/display.css
index a1471874f3..b8e2f17292 100644
--- a/ext/css/display.css
+++ b/ext/css/display.css
@@ -1973,7 +1973,7 @@ button.footer-notification-close-button {
     display: none;
 }
 
-:root[data-average-frequency=true] .frequency-group-item:not(:last-child){
+:root[data-average-frequency=true] .frequency-group-item:not(:last-child) {
     display: none;
 }