diff --git a/GUIs.ZooFlow/frmtest.vb b/GUIs.ZooFlow/frmtest.vb
index 3faa371e..7fc6a5d5 100644
--- a/GUIs.ZooFlow/frmtest.vb
+++ b/GUIs.ZooFlow/frmtest.vb
@@ -102,7 +102,7 @@ Public Class frmtest
             cmbObjectStoreType.Text,
             "DEFAULT",
             New Client.NewFileOptions With {
-                .KeepExtension = True
+                .KeepExtension = CheckBoxKeepExtension.Checked
             }
         )