diff --git a/src/components/views/settings/tabs/room/AdvancedRoomSettingsTab.tsx b/src/components/views/settings/tabs/room/AdvancedRoomSettingsTab.tsx
index c019e83aac2a..d9acba8524a4 100644
--- a/src/components/views/settings/tabs/room/AdvancedRoomSettingsTab.tsx
+++ b/src/components/views/settings/tabs/room/AdvancedRoomSettingsTab.tsx
@@ -19,7 +19,7 @@ import { EventType } from "matrix-js-sdk/src/@types/event";
 
 import { _t } from "../../../../../languageHandler";
 import { MatrixClientPeg } from "../../../../../MatrixClientPeg";
-import AccessibleButton from "../../../elements/AccessibleButton";
+import AccessibleButton, { ButtonEvent } from "../../../elements/AccessibleButton";
 import RoomUpgradeDialog from "../../../dialogs/RoomUpgradeDialog";
 import Modal from "../../../../../Modal";
 import dis from "../../../../../dispatcher/dispatcher";
@@ -47,7 +47,7 @@ interface IState {
 }
 
 export default class AdvancedRoomSettingsTab extends React.Component<IProps, IState> {
-    public constructor(props, context) {
+    public constructor(props: IProps, context: any) {
         super(props, context);
 
         const msc3946ProcessDynamicPredecessor = SettingsStore.getValue("feature_dynamic_room_predecessors");
@@ -77,12 +77,12 @@ export default class AdvancedRoomSettingsTab extends React.Component<IProps, ISt
         });
     }
 
-    private upgradeRoom = (e): void => {
+    private upgradeRoom = (): void => {
         const room = MatrixClientPeg.get().getRoom(this.props.roomId);
         Modal.createDialog(RoomUpgradeDialog, { room });
     };
 
-    private onOldRoomClicked = (e): void => {
+    private onOldRoomClicked = (e: ButtonEvent): void => {
         e.preventDefault();
         e.stopPropagation();