diff --git a/packages/core/client/src/schema-initializer/items/ExpandActionInitializer.tsx b/packages/core/client/src/schema-initializer/items/ExpandActionInitializer.tsx
index 951c92d581..6844df1d68 100644
--- a/packages/core/client/src/schema-initializer/items/ExpandActionInitializer.tsx
+++ b/packages/core/client/src/schema-initializer/items/ExpandActionInitializer.tsx
@@ -25,7 +25,7 @@ export const ExpandActionInitializer = (props) => {
   return <ActionInitializer {...props} schema={schema} />;
 };
 
-export const actionDesignerCss = css`
+const actionDesignerCss = css`
   position: relative;
   &:hover {
     .general-schema-designer {