diff --git a/src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/References.cs b/src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/References.cs
index 3162d8a441..d9e7b5f04e 100644
--- a/src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/References.cs
+++ b/src/AddIns/Misc/PackageManagement/Project/Src/EnvDTE/References.cs
@@ -10,7 +10,7 @@ using ICSharpCode.SharpDevelop.Project;
 
 namespace ICSharpCode.PackageManagement.EnvDTE
 {
-	public class References : MarshalByRefObject, IEnumerable<Reference>, global::EnvDTE.References
+	public class References : MarshalByRefObject, IEnumerable, global::EnvDTE.References
 	{
 		MSBuildBasedProject msbuildProject;
 		IPackageManagementProjectService projectService;
@@ -45,24 +45,18 @@ namespace ICSharpCode.PackageManagement.EnvDTE
 			project.Save();
 		}
 		
-		public IEnumerator<Reference> GetEnumerator()
+		public IEnumerator GetEnumerator()
 		{
-			List<Reference> references = GetReferences().ToList();
-			return references.GetEnumerator();
+			return GetReferences().ToList().GetEnumerator();
 		}
 		
-		IEnumerable<Reference> GetReferences()
+		IEnumerable<global::EnvDTE.Reference> GetReferences()
 		{
 			foreach (ReferenceProjectItem referenceProjectItem in project.GetReferences()) {
 				yield return new Reference3(project, referenceProjectItem);
 			}
 		}
 		
-		IEnumerator IEnumerable.GetEnumerator()
-		{
-			return GetEnumerator();
-		}
-		
 		public global::EnvDTE.Reference Item(string identity)
 		{
 			return Find(identity);
diff --git a/src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ReferencesTests.cs b/src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ReferencesTests.cs
index fa2912611b..b65b231d5c 100644
--- a/src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ReferencesTests.cs
+++ b/src/AddIns/Misc/PackageManagement/Test/Src/EnvDTE/ReferencesTests.cs
@@ -30,18 +30,10 @@ namespace PackageManagement.Tests.EnvDTE
 			references = (References)projectObject.References;
 		}
 		
-		void ReferenceCollectionAssertAreEqual(string[] expectedReferences, List<Reference> referenceList)
-		{
-			var actualReferences = new List<string>();
-			referenceList.ForEach(r => actualReferences.Add(r.Name));
-			
-			CollectionAssert.AreEqual(expectedReferences, actualReferences);
-		}
-		
 		void ReferenceCollectionAssertAreEqual(string[] expectedReferences, IEnumerable referenceList)
 		{
 			var actualReferences = new List<string>();
-			foreach (Reference reference in referenceList) {
+			foreach (global::EnvDTE.Reference reference in referenceList) {
 				actualReferences.Add(reference.Name);
 			}
 			
@@ -116,15 +108,14 @@ namespace PackageManagement.Tests.EnvDTE
 			msbuildProject.AddReference("System.Data");
 			msbuildProject.AddReference("System.Xml");
 			
-			var referenceList = new List<Reference>();
-			referenceList.AddRange(references);
+			var enumerable = references as IEnumerable;
 			
 			var expectedReferences = new string[] {
 				"System.Data",
 				"System.Xml"
 			};
 			
-			ReferenceCollectionAssertAreEqual(expectedReferences, referenceList);
+			ReferenceCollectionAssertAreEqual(expectedReferences, enumerable);
 		}
 		
 		[Test]
@@ -134,14 +125,13 @@ namespace PackageManagement.Tests.EnvDTE
 			msbuildProject.AddFile(@"src\Test.cs");
 			msbuildProject.AddReference("System.Xml");
 			
-			var referenceList = new List<Reference>();
-			referenceList.AddRange(references);
+			var enumerable = references as IEnumerable;
 			
 			var expectedReferences = new string[] {
 				"System.Xml"
 			};
 			
-			ReferenceCollectionAssertAreEqual(expectedReferences, referenceList);
+			ReferenceCollectionAssertAreEqual(expectedReferences, enumerable);
 		}
 		
 		[Test]