diff --git a/EduNetworkBuilder/NetworkDevice.cs b/EduNetworkBuilder/NetworkDevice.cs
index 2492cf2..cb9faa4 100644
--- a/EduNetworkBuilder/NetworkDevice.cs
+++ b/EduNetworkBuilder/NetworkDevice.cs
@@ -1116,6 +1116,15 @@ namespace EduNetworkBuilder
 
             if (!isInvisible)
             {
+                if (IsLockedInLocation()) //We darken the area around it slightly to show it is locked
+                {
+                    Color darken = Color.Black;
+                    Brush brush = new SolidBrush(Color.FromArgb(32, darken.R, darken.G, darken.B));
+                    Pen DrawPen = new Pen(brush, 2);
+                    Graphics.FromImage(BaseImage).DrawEllipse(DrawPen, Location);
+                    Network myNet = NB.GetNetwork();
+                    myNet.Invalidate(Location);
+                }
                 if (BackgroundColor != Color.Empty)
                 {
                     Brush brush = new SolidBrush(Color.FromArgb(128, BackgroundColor.R, BackgroundColor.G, BackgroundColor.B));