diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 7a2db48e..d8c64ce8 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -162,7 +162,7 @@ namespace GARbro.GUI
         void PushRecentFile (string file)
         {
             var node = m_recent_files.Find (file);
-            if (node == m_recent_files.First)
+            if (node != null && node == m_recent_files.First)
                 return;
             if (null == node)
             {