diff --git a/Disco.BI/BI/Interop/ActiveDirectory/ActiveDirectory.cs b/Disco.BI/BI/Interop/ActiveDirectory/ActiveDirectory.cs
index f38a584c..c91df41f 100644
--- a/Disco.BI/BI/Interop/ActiveDirectory/ActiveDirectory.cs
+++ b/Disco.BI/BI/Interop/ActiveDirectory/ActiveDirectory.cs
@@ -341,6 +341,7 @@ namespace Disco.BI.Interop.ActiveDirectory
 					"sn", 
 					"givenName", 
 					"memberOf", 
+                    "primaryGroupID",
 					"mail", 
 					"telephoneNumber"
 				}, SearchScope.Subtree))