diff --git a/src/components/data-table/ha-data-table.ts b/src/components/data-table/ha-data-table.ts
index 0dc6e05a5e..5543a28807 100644
--- a/src/components/data-table/ha-data-table.ts
+++ b/src/components/data-table/ha-data-table.ts
@@ -1402,6 +1402,9 @@ export class HaDataTable extends LitElement {
         }
         .secondary {
           color: var(--secondary-text-color);
+          white-space: nowrap;
+          overflow: hidden;
+          text-overflow: ellipsis;
         }
         .scroller {
           height: calc(100% - 57px);