diff --git a/packages/template-builder/src/types.ts b/packages/template-builder/src/types.ts
index 32ea70a042..5554e39b67 100644
--- a/packages/template-builder/src/types.ts
+++ b/packages/template-builder/src/types.ts
@@ -10,6 +10,7 @@ export interface FieldDefinition {
   group?: string;
 }
 
+/** Field instance in a template document */
 export interface TemplateField {
   id: string | number;
   alias: string;