diff --git a/src/constants.ts b/src/constants.ts
index 20b9caa..829cbfc 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -87,7 +87,7 @@ export type TableColumn = HasLabel & {
         cellValue: TableCellTypes,
         rawData: TDataIn,
         data: TableCellTypes[][],
-    ) => JSX.Element;
+    ) => React.JSX.Element;
     formatterOptions?: {
         keepFormat?: boolean;
         decimals?: number;
diff --git a/src/hooks.ts b/src/hooks.ts
index 45a0fdd..4b55d31 100644
--- a/src/hooks.ts
+++ b/src/hooks.ts
@@ -4,7 +4,7 @@ import { startTransition, useEffect, useMemo, useRef, useState } from 'react';
 import { debounce } from 'uno-js';
 
 export const useDebounce = (callback: () => unknown, waitMilliseconds?: number) => {
-    const ref = useRef<() => unknown>();
+    const ref = useRef<() => unknown>(null);
 
     useEffect(() => {
         ref.current = callback;