diff --git a/packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/service/GraphQLService.kt b/packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/service/GraphQLService.kt
index eb7af63826..ac2d832e69 100644
--- a/packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/service/GraphQLService.kt
+++ b/packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/service/GraphQLService.kt
@@ -44,7 +44,7 @@ class GraphQLService @Inject constructor() {
     ) = mutation(
         CreateCopilotSessionMutation(
             CreateChatSessionInput(
-                docId = docId,
+                docId = Optional.present(docId),
                 workspaceId = workspaceId,
                 promptName = prompt.value
             )
@@ -132,4 +132,4 @@ class GraphQLService @Inject constructor() {
     companion object {
         private const val ERROR_NULL_SESSION_ID = "null session id."
     }
-}
\ No newline at end of file
+}