diff --git a/atom/browser/ui/message_box_mac.mm b/atom/browser/ui/message_box_mac.mm
index 2ff0ee93e928..370b5911d0c2 100644
--- a/atom/browser/ui/message_box_mac.mm
+++ b/atom/browser/ui/message_box_mac.mm
@@ -141,4 +141,13 @@ void ShowMessageBox(NativeWindow* parent_window,
                       contextInfo:nil];
 }
 
+void ShowErrorBox(const base::string16& title, const base::string16& content) {
+  NSAlert* alert = [[NSAlert alloc] init];
+  [alert setMessageText:base::SysUTF16ToNSString(title)];
+  [alert setInformativeText:base::SysUTF16ToNSString(content)];
+  [alert setAlertStyle:NSWarningAlertStyle];
+  [alert runModal];
+  [alert release];
+}
+
 }  // namespace atom