diff --git a/components/lib/panel/Panel.d.ts b/components/lib/panel/Panel.d.ts
index beccf6a9e..4c64233c6 100755
--- a/components/lib/panel/Panel.d.ts
+++ b/components/lib/panel/Panel.d.ts
@@ -153,7 +153,7 @@ export interface PanelSlots {
         /**
          * Current id state as a string
          */
-        id: boolean;
+        id: string;
         /**
          * Style class of the icon
          */