diff --git a/OpenSim/Data/Tests/BasicRegionTest.cs b/OpenSim/Data/Tests/BasicRegionTest.cs
index f76962cd37..676c6ba968 100644
--- a/OpenSim/Data/Tests/BasicRegionTest.cs
+++ b/OpenSim/Data/Tests/BasicRegionTest.cs
@@ -577,6 +577,7 @@ namespace OpenSim.Data.Tests
                 .IgnoreProperty(x=>x.RegionUUID)
                 .IgnoreProperty(x=>x.Scene)
                 .IgnoreProperty(x=>x.Children)
+                .IgnoreProperty(x=>x.PassCollision)
                 .IgnoreProperty(x=>x.RootPart));
         }