diff --git a/components/lib/dropdown/Dropdown.d.ts b/components/lib/dropdown/Dropdown.d.ts
index 0e7fe8d6a4..f04e1174a5 100755
--- a/components/lib/dropdown/Dropdown.d.ts
+++ b/components/lib/dropdown/Dropdown.d.ts
@@ -2,7 +2,7 @@ import * as React from 'react';
 import TooltipOptions from '../tooltip/tooltipoptions';
 import { CSSTransitionProps } from '../csstransition';
 import { VirtualScrollerProps } from '../virtualscroller';
-import { SelectItemOptionsType } from '../selectitem/SelectItem';
+import { SelectItemOptionsType } from '../selectitem/selectitem';
 
 type DropdownOptionGroupTemplateType = React.ReactNode | ((option: any, index: number) => React.ReactNode);