diff --git a/packages/react/src/components/Dropdown/Dropdown.tsx b/packages/react/src/components/Dropdown/Dropdown.tsx
index 2448a141062b..f6c41c1d8c88 100644
--- a/packages/react/src/components/Dropdown/Dropdown.tsx
+++ b/packages/react/src/components/Dropdown/Dropdown.tsx
@@ -220,7 +220,7 @@ export interface DropdownProps<ItemType>
    * Provide the title text that will be read by a screen reader when
    * visiting this control
    */
-  titleText?: ReactNode;
+  titleText: ReactNode;
 
   /**
    * The dropdown type, `default` or `inline`