diff --git a/packages/analytics/src/interface.ts b/packages/analytics/src/interface.ts
index ba7c48c..94ed03b 100644
--- a/packages/analytics/src/interface.ts
+++ b/packages/analytics/src/interface.ts
@@ -14,7 +14,7 @@ export interface SessionDocument {
 export interface CommandObject {
   command: string
   pwd: string
-  stage: string | null | undefined
+  stage?: string | null
   output: string | undefined
   error: string | undefined
   createdAt: string