diff --git a/src/components/views/dialogs/AddressPickerDialog.tsx b/src/components/views/dialogs/AddressPickerDialog.tsx
index 1313e42983..a3abc15b1b 100644
--- a/src/components/views/dialogs/AddressPickerDialog.tsx
+++ b/src/components/views/dialogs/AddressPickerDialog.tsx
@@ -92,7 +92,7 @@ interface IState {
 export default class AddressPickerDialog extends React.Component<IProps, IState> {
     private textinput = createRef<HTMLTextAreaElement>();
     private addressSelector = createRef<AddressSelector>();
-    private queryChangedDebouncer: NodeJS.Timeout;
+    private queryChangedDebouncer: number;
     private cancelThreepidLookup: () => void;
 
     static defaultProps: Partial<IProps> = {