diff --git a/packages/primevue/src/menubar/Menubar.d.ts b/packages/primevue/src/menubar/Menubar.d.ts
index b4dd961e9..21e7d69f6 100755
--- a/packages/primevue/src/menubar/Menubar.d.ts
+++ b/packages/primevue/src/menubar/Menubar.d.ts
@@ -97,7 +97,7 @@ export interface MenubarPassThroughOptions {
     /**
      * Used to pass attributes to the mobile menu button icon's DOM element.
      */
-    buttonicon?: MenubarPassThroughOptionType;
+    buttonIcon?: MenubarPassThroughOptionType;
     /**
      * Used to pass attributes to the submenu's DOM element.
      */