diff --git a/packages/components/src/Interface.ts b/packages/components/src/Interface.ts
index 2a625ff6..9da26f82 100644
--- a/packages/components/src/Interface.ts
+++ b/packages/components/src/Interface.ts
@@ -90,7 +90,7 @@ export interface INodeProperties {
     type: string
     icon: string
     version: number
-    category: string
+    category: string // TODO: use enum instead of string
     baseClasses: string[]
     description?: string
     filePath?: string