diff --git a/superset-frontend/src/common/components/index.tsx b/superset-frontend/src/common/components/index.tsx
index 88611cd86d2a..230a9e183c61 100644
--- a/superset-frontend/src/common/components/index.tsx
+++ b/superset-frontend/src/common/components/index.tsx
@@ -24,7 +24,6 @@ import {
   Input as AntdInput,
   InputNumber as AntdInputNumber,
   Skeleton,
-  Upload,
 } from 'antd';
 import { DropDownProps } from 'antd/lib/dropdown';
 /*
diff --git a/superset-frontend/src/components/Button/index.tsx b/superset-frontend/src/components/Button/index.tsx
index 3c601efba4b3..8d22e561a1e3 100644
--- a/superset-frontend/src/components/Button/index.tsx
+++ b/superset-frontend/src/components/Button/index.tsx
@@ -62,7 +62,7 @@ export interface ButtonProps {
   href?: string;
   htmlType?: 'button' | 'submit' | 'reset';
   cta?: boolean;
-  loading?: boolean;
+  loading?: boolean | { delay: number };
 }
 
 export default function Button(props: ButtonProps) {