diff --git a/MultiTool.Form/frmImportMain.vb b/MultiTool.Form/frmImportMain.vb
index 454b639..5fad16a 100644
--- a/MultiTool.Form/frmImportMain.vb
+++ b/MultiTool.Form/frmImportMain.vb
@@ -95,6 +95,7 @@ Public Class frmImportMain
             lookupMandator.Properties.DataSource = Winline.Mandators
             lookupMandator.ForceInitialize()
             lookupMandator.Properties.View.BestFitColumns()
+            lookupMandator.Enabled = False
 
             DocumentLoader = New DocumentLoader(LogConfig, Winline, Database,
                                                 My.MappingConfiguration,