diff --git a/scm-ui-components/packages/ui-components/src/modals/Modal.js b/scm-ui-components/packages/ui-components/src/modals/Modal.js
index 01da67c49b..0a93e134d7 100644
--- a/scm-ui-components/packages/ui-components/src/modals/Modal.js
+++ b/scm-ui-components/packages/ui-components/src/modals/Modal.js
@@ -9,7 +9,7 @@ type Props = {
   footer?: any,
   active: boolean,
   className?: string,
-  headColor?: string
+  headColor: string
 };
 
 class Modal extends React.Component<Props> {