diff --git a/api/js/etemplate/et2_widget_box.ts b/api/js/etemplate/et2_widget_box.ts
index 6d63865419..70ae6ead83 100644
--- a/api/js/etemplate/et2_widget_box.ts
+++ b/api/js/etemplate/et2_widget_box.ts
@@ -241,7 +241,7 @@ export class et2_details extends et2_box
 				.click(function () {
 					self._toggle();
 				})
-					.text(this.options.title);
+					.text(this.egw().lang(this.options.title));
 		}
 
 		// Align toggle button left/right