diff --git a/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs b/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
index 5299d27..7087faa 100644
--- a/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
+++ b/NHSE.WinForms/Subforms/Map/FieldItemEditor.cs
@@ -920,7 +920,7 @@ private void B_ExportPlacedDesigns_Click(object sender, EventArgs e)
         {
             using var sfd = new SaveFileDialog
             {
-                Filter = "nhmd file (*.nhmd)",
+                Filter = "nhmd file (*.nhmd)|*.nhmd",
                 FileName = "Island MyDesignMap.nhmd",
             };
             if (sfd.ShowDialog() != DialogResult.OK)
@@ -936,7 +936,7 @@ private void B_ImportPlacedDesigns_Click(object sender, EventArgs e)
         {
             using var ofd = new OpenFileDialog
             {
-                Filter = "nhmd file (*.nhmd)",
+                Filter = "nhmd file (*.nhmd)|*.nhmd",
                 FileName = "Island MyDesignMap.nhmd",
             };
             if (ofd.ShowDialog() != DialogResult.OK)