1 files changed, 3 insertions, 3 deletions
diff --git a/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildPropertyGroupCollection.cs b/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildPropertyGroupCollection.cs
index abbea0bf1d5..6c3c3987e04 100644
--- a/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildPropertyGroupCollection.cs
+++ b/mcs/class/Microsoft.Build.Engine/Microsoft.Build.BuildEngine/BuildPropertyGroupCollection.cs
@@ -31,16 +31,16 @@ using System;
 using System.Collections;
 
 namespace Microsoft.Build.BuildEngine {
-	public class BuildPropertyGroupCollection : ICollection, IEnumerable {
+	public class BuildPropertyGroupCollection : IBuildPropertyGroupCollection, ICollection, IEnumerable {
 
 		GroupingCollection	groupingCollection;
 	
-		private BuildPropertyGroupCollection ()
+		public BuildPropertyGroupCollection ()
 		{
 			groupingCollection = new GroupingCollection ();
 		}
 
-		internal BuildPropertyGroupCollection (GroupingCollection groupingCollection)
+		public BuildPropertyGroupCollection (GroupingCollection groupingCollection)
 		{
 			this.groupingCollection = groupingCollection;
 		}