diff --git a/EduNetworkBuilder/VLANConfig.cs b/EduNetworkBuilder/VLANConfig.cs
index 2b437a7..eae6cef 100644
--- a/EduNetworkBuilder/VLANConfig.cs
+++ b/EduNetworkBuilder/VLANConfig.cs
@@ -54,7 +54,10 @@ namespace EduNetworkBuilder
             if (dgv_VLANNames.Columns.Count > 0)
             {
                 dgv_VLANNames.Columns[0].ReadOnly = LockedNames;
-                dgv_VLANNames.Columns[1].ReadOnly = LockedNames;
+                if (theNet.VLANPacketColors && dgv_VLANNames.Columns.Count > 1)
+                {
+                    dgv_VLANNames.Columns[1].ReadOnly = LockedNames;
+                }
                 if(theNet.VLANPacketColors && dgv_VLANNames.Columns.Count > 2)
                 {
                     dgv_VLANNames.Columns[2].ReadOnly = LockedNames;