diff --git a/ILSpy/TreeNodes/BaseTypesTreeNode.cs b/ILSpy/TreeNodes/BaseTypesTreeNode.cs
index ff3f82c43..488807f05 100644
--- a/ILSpy/TreeNodes/BaseTypesTreeNode.cs
+++ b/ILSpy/TreeNodes/BaseTypesTreeNode.cs
@@ -94,7 +94,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 		}
 		
 		public override object Text {
-			get { return tr.FullName; }
+			get { return this.Language.TypeToString(tr, true); }
 		}
 		
 		public override object Icon {
diff --git a/ILSpy/TreeNodes/DerivedTypesTreeNode.cs b/ILSpy/TreeNodes/DerivedTypesTreeNode.cs
index df72c8441..35dc5f694 100644
--- a/ILSpy/TreeNodes/DerivedTypesTreeNode.cs
+++ b/ILSpy/TreeNodes/DerivedTypesTreeNode.cs
@@ -109,7 +109,7 @@ namespace ICSharpCode.ILSpy.TreeNodes
 		}
 		
 		public override object Text {
-			get { return def.FullName; }
+			get { return this.Language.TypeToString(def, true); }
 		}
 		
 		public override object Icon {