diff --git a/api/js/etemplate/Et2Button/Et2Button.ts b/api/js/etemplate/Et2Button/Et2Button.ts
index e96d4a5621..9dedabb978 100644
--- a/api/js/etemplate/Et2Button/Et2Button.ts
+++ b/api/js/etemplate/Et2Button/Et2Button.ts
@@ -18,6 +18,14 @@ import {PropertyValues} from "@lion/core";
 
 export class Et2Button extends ButtonMixin(Et2InputWidget(SlButton))
 {
+	static get properties()
+	{
+		return {
+			...super.properties,
+			label: {type: String}
+		}
+	}
+
 	protected firstUpdated(_changedProperties : PropertyValues)
 	{
 		super.firstUpdated(_changedProperties);
diff --git a/calendar/js/et2_widget_event.ts b/calendar/js/et2_widget_event.ts
index 423564a995..057fcb90f5 100644
--- a/calendar/js/et2_widget_event.ts
+++ b/calendar/js/et2_widget_event.ts
@@ -1349,10 +1349,11 @@ export class et2_calendar_event extends et2_valueWidget implements et2_IDetached
 							label: egw.lang("Edit exception"),
 							id: "exception",
 							class: "ui-priority-primary",
-							"default": true
+							default: true,
+							image: 'edit'
 						},
-						{label: egw.lang("Edit series"), id: "series"},
-						{label: egw.lang("Cancel"), id: "cancel"}
+						{label: egw.lang("Edit series"), id: "series", image: 'recur'},
+						{label: egw.lang("Cancel"), id: "cancel", image: 'cancel'}
 					];
 					Et2Dialog.show_dialog(
 						function(button_id)