diff --git a/react-bootstrap/index.d.ts b/react-bootstrap/index.d.ts
index ab5b020bbf..4b85a40a27 100644
--- a/react-bootstrap/index.d.ts
+++ b/react-bootstrap/index.d.ts
@@ -428,6 +428,7 @@ declare namespace ReactBootstrap {
         rootClose?: boolean;
         show?: boolean;
         target?: Function;
+        shouldUpdatePosition?: boolean;
     }
     class Overlay extends React.Component<OverlayProps, {}> {
     }