diff --git a/src/Main/Base/Project/Editor/CodeCompletion/ICompletionItemHandler.cs b/src/Main/Base/Project/Editor/CodeCompletion/ICompletionItemHandler.cs
deleted file mode 100644
index c839d20734..0000000000
--- a/src/Main/Base/Project/Editor/CodeCompletion/ICompletionItemHandler.cs
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
-// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
-
-using System;
-
-namespace ICSharpCode.SharpDevelop.Editor.CodeCompletion
-{
-	public interface ICompletionItemHandler
-	{
-		void Insert(CompletionContext context, ICompletionItem item);
-		bool Handles(ICompletionItem item);
-	}
-}
diff --git a/src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj b/src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj
index 1ad8434875..21b4ccc231 100644
--- a/src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj
+++ b/src/Main/Base/Project/ICSharpCode.SharpDevelop.csproj
@@ -181,7 +181,6 @@
     <Compile Include="Src\Commands\SharpDevelopRoutedCommands.cs" />
     <Compile Include="Src\Commands\ViewInBrowser.cs" />
     <Compile Include="Src\Editor\AvalonEdit\IndentationStrategyAdapter.cs" />
-    <Compile Include="Editor\CodeCompletion\ICompletionItemHandler.cs" />
     <Compile Include="Src\Editor\CodeCompletion\CodeCompletionPanelXaml.xaml.cs" />
     <Compile Include="Src\Editor\Commands\ClassBookmarkSubmenuBuilder.cs" />
     <Compile Include="Src\Editor\Commands\ClassMemberMenuBuilder.cs" />