diff --git a/packages/fscomponents/src/components/CMSBanner.tsx b/packages/fscomponents/src/components/CMSBanner.tsx
index d7360eb0b2..fd33f87c51 100644
--- a/packages/fscomponents/src/components/CMSBanner.tsx
+++ b/packages/fscomponents/src/components/CMSBanner.tsx
@@ -31,7 +31,7 @@ export interface CMSBannerState {
   containerWidth: number;
 }
 
-export abstract class CMSBanner<P extends CMSBannerProps>
+export abstract class CMSBanner<P extends CMSBannerProps, S = {}>
   extends Component<P, CMSBannerState> {
 
   state: CMSBannerState = {