diff --git a/SparkleShare/Linux/SparkleSetupWindow.cs b/SparkleShare/Linux/SparkleSetupWindow.cs
index 44ce60f5..218360b9 100755
--- a/SparkleShare/Linux/SparkleSetupWindow.cs
+++ b/SparkleShare/Linux/SparkleSetupWindow.cs
@@ -51,6 +51,7 @@ namespace SparkleShare {
             Resizable      = false;
             WindowPosition = WindowPosition.Center;
             Deletable      = false;
+            TypeHint       = Gdk.WindowTypeHint.Dialog;
 
             DeleteEvent += delegate (object sender, DeleteEventArgs args) {
                 args.RetVal = true;