diff --git a/app/src/components/main/grid/gridHeader/headerCell/headerCell.jsx b/app/src/components/main/grid/gridHeader/headerCell/headerCell.jsx
index cc5afcd644..cf34d82f46 100644
--- a/app/src/components/main/grid/gridHeader/headerCell/headerCell.jsx
+++ b/app/src/components/main/grid/gridHeader/headerCell/headerCell.jsx
@@ -82,7 +82,10 @@ export const HeaderCell = track()(
         className={cx('header-cell', computedClassName)}
         style={customProps.rawHeaderCellStylesConfig}
       >
-        <div className={cx('title-container')} onClick={sortable ? sortingClickHandler : null}>
+        <div
+          className={cx('title-container', customProps.titleClassName)}
+          onClick={sortable ? sortingClickHandler : null}
+        >
           <div className={cx('filter')} onClick={filterClickHandler}>
             {Parser(FilterIcon)}
           </div>
diff --git a/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.jsx b/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.jsx
index 3f39fe854c..2f383c4f15 100644
--- a/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.jsx
+++ b/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.jsx
@@ -89,7 +89,7 @@ export const UniqueErrorsGridWrapped = ({ parentLaunch, data, loading, ...rest }
     activeSorting: true,
     sortable: true,
     customProps: {
-      gridHeaderCellStyles: cx('matched-header'),
+      titleClassName: cx('matched-header'),
     },
     sortingEventInfo: UNIQUE_ERRORS_PAGE_EVENTS.CLICK_MATCHED_TESTS_HEADER_CELL,
   });
diff --git a/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.scss b/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.scss
index 3a41f6aa38..0631c201f6 100644
--- a/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.scss
+++ b/app/src/pages/inside/uniqueErrorsPage/uniqueErrorsGrid/uniqueErrorsGrid.scss
@@ -20,6 +20,7 @@
 
 .cluster-header {
   padding-left: 37px;
+  width: 100%;
 }
 
 .matched-header{