diff --git a/backend/internal/router/app/info.go b/backend/internal/router/app/info.go
index 65134be..1bd2c42 100644
--- a/backend/internal/router/app/info.go
+++ b/backend/internal/router/app/info.go
@@ -261,7 +261,6 @@ func handleAppCheckUpdate(c *gin.Context) {
 		"entry_file":              latestVersion.EntryFile,
 		"entry_files":             latestVersion.EntryFiles,
 		"desktop_shortcut_files": latestVersion.DesktopShortcutFiles,
-		"default_install_dir":    latestVersion.DefaultInstallDir,
 		"update_notes":            latestVersion.Description,
 		"update_strategy":         updateStrategy,
 		"update_type":             latestVersion.UpdateType,