diff --git a/packages/core/src/interface.ts b/packages/core/src/interface.ts
index 91b79c32..19472c4b 100644
--- a/packages/core/src/interface.ts
+++ b/packages/core/src/interface.ts
@@ -765,7 +765,7 @@ export interface MarkdownField extends MediaField {
   widget: 'markdown';
   toolbar_buttons?: MarkdownFieldToolbarButtons;
   default?: string;
-  show_raw?: string;
+  show_raw?: boolean;
 }
 
 export interface NumberField extends BaseField {