diff --git a/types/react-redux-toastr/index.d.ts b/types/react-redux-toastr/index.d.ts
index 29570b99a2..125e0f138e 100644
--- a/types/react-redux-toastr/index.d.ts
+++ b/types/react-redux-toastr/index.d.ts
@@ -100,6 +100,7 @@ interface ReduxToastrProps {
     toastr?: ToastrState;
     transitionIn?: transitionInType;
     transitionOut?: transitionOutType;
+    className?: string;
 }
 
 interface ToastrEmitter {