diff --git a/react-flex/react-flex.d.ts b/react-flex/react-flex.d.ts
index ddb7c3e5da..2bfb73c7cd 100644
--- a/react-flex/react-flex.d.ts
+++ b/react-flex/react-flex.d.ts
@@ -9,6 +9,11 @@ declare namespace __ReactFlex {
     export import React = __React;
 
     interface CommonFlexProps {
+        /**
+         * For custom style
+         */
+        style?: any;
+
         /**
          * For `display: inline-flex`.
          */