diff --git a/types/material-ui/index.d.ts b/types/material-ui/index.d.ts
index 3b90e7f631..9bf968fa79 100644
--- a/types/material-ui/index.d.ts
+++ b/types/material-ui/index.d.ts
@@ -1214,6 +1214,8 @@ declare namespace __MaterialUI {
         autoLockScrolling?: boolean;
         show?: boolean;
         transitionEnabled?: boolean;
+        onClick?: React.MouseEventHandler<{}>;
+        onTouchTap?: TouchTapEventHandler;
     }
     export class Overlay extends React.Component<OverlayProps, {}> {
     }
@@ -8635,6 +8637,8 @@ declare module 'material-ui/internal/Overlay' {
         show: boolean;
         style?: React.CSSProperties;
         transitionEnabled?: boolean;
+        onClick?: React.MouseEventHandler<{}>;
+        onTouchTap?: __MaterialUI.TouchTapEventHandler;
     }
     class Overlay extends React.Component<OverlayProps, {}> { }
     export default Overlay;