diff --git a/react-bootstrap/react-bootstrap.d.ts b/react-bootstrap/react-bootstrap.d.ts
index 8f3803a6b..5e3532c64 100644
--- a/react-bootstrap/react-bootstrap.d.ts
+++ b/react-bootstrap/react-bootstrap.d.ts
@@ -249,6 +249,7 @@ declare module "react-bootstrap" {
         dialogComponent?: any; // TODO: Add more specific type
         enforceFocus?: boolean;
         keyboard?: boolean;
+        show?: boolean;
     }
     interface Modal extends React.ReactElement<ModalProps> { }
     interface ModalClass extends React.ComponentClass<ModalProps> {