diff --git a/app_builder/lib/app_builder/macos.ex b/app_builder/lib/app_builder/macos.ex
index ef25617e6..f5dcb8079 100644
--- a/app_builder/lib/app_builder/macos.ex
+++ b/app_builder/lib/app_builder/macos.ex
@@ -157,6 +157,7 @@ defmodule AppBuilder.MacOS do
 
     if task.terminationStatus != 0 {
       let alert = NSAlert()
+      alert.alertStyle = .critical
       alert.messageText = "\\(appName) exited with error status \\(task.terminationStatus)."
       alert.informativeText = "Logs available at \\(logPath)."
       alert.runModal()