diff --git a/FastGithub.UI/App.xaml.cs b/FastGithub.UI/App.xaml.cs
index 8347a18..66cbf36 100644
--- a/FastGithub.UI/App.xaml.cs
+++ b/FastGithub.UI/App.xaml.cs
@@ -87,7 +87,7 @@ namespace FastGithub.UI
             var startInfo = new ProcessStartInfo
             {
                 FileName = fileName,
-                Arguments = $"ParentProcessId {Process.GetCurrentProcess().Id}",
+                Arguments = $"ParentProcessId={Process.GetCurrentProcess().Id}",
                 UseShellExecute = false,
                 CreateNoWindow = true
             };