diff --git a/src/fields/config/types.ts b/src/fields/config/types.ts
index 20da8798ef..698e88f212 100644
--- a/src/fields/config/types.ts
+++ b/src/fields/config/types.ts
@@ -264,6 +264,7 @@ export type JSONField = Omit<FieldBase, 'admin'> & {
   admin?: Admin
   type: 'json';
   editorOptions?: any;
+  jsonError?: string;
 }
 
 export type SelectField = FieldBase & {