diff --git a/Naggum.Assembler/Assembler.fs b/Naggum.Assembler/Assembler.fs
index f37bbb1..2c6d593 100644
--- a/Naggum.Assembler/Assembler.fs
+++ b/Naggum.Assembler/Assembler.fs
@@ -17,7 +17,6 @@ let private getMethodAttributes (m : MethodDefinition) =
     |> List.fold (|||) empty
 
 let private findMethod (signature : MethodSignature) =
-    // TODO: Add method overload resolution etc. (see ClrGenerator module)
     let ``type`` = signature.ContainingType.Value
     ``type``.GetMethod (signature.Name, Array.ofList signature.ArgumentTypes)
 
@@ -38,7 +37,6 @@ let private assembleUnit (assemblyBuilder : AssemblyBuilder) (builder : ModuleBu
         let attributes = getMethodAttributes m
         let returnType = m.ReturnType
         let argumentTypes = Array.ofList m.ArgumentTypes
-        System.Diagnostics.Debug.Print (sprintf "%A" m)
         let methodBuilder = builder.DefineGlobalMethod (name,
                                                         attributes,
                                                         returnType,
diff --git a/Naggum.Assembler/AssemblyInfo.fs b/Naggum.Assembler/AssemblyInfo.fs
index 9d9fc00..421115a 100644
--- a/Naggum.Assembler/AssemblyInfo.fs
+++ b/Naggum.Assembler/AssemblyInfo.fs
@@ -5,7 +5,7 @@ open System.Runtime.InteropServices
 
 [<assembly: AssemblyTitle("Naggum.Assembler")>]
 [<assembly: AssemblyProduct("Naggum")>]
-[<assembly: AssemblyCopyright("Copyright © Codingteam 2015")>]
+[<assembly: AssemblyCopyright("Copyright © Naggum authors 2015-2016")>]
 [<assembly: ComVisible(false)>]
 [<assembly: Guid("40b84f1e-1823-4255-80d4-1297613025c1")>]
 [<assembly: AssemblyVersion("0.0.1.0")>]
diff --git a/Naggum.Assembler/Processor.fs b/Naggum.Assembler/Processor.fs
index 0309e51..2d19734 100644
--- a/Naggum.Assembler/Processor.fs
+++ b/Naggum.Assembler/Processor.fs
@@ -1,8 +1,8 @@
 module Naggum.Assembler.Processor
 
 open System
+open System.IO
 open System.Reflection
-open System.Reflection.Emit
 
 open Naggum.Assembler.Representation
 open Naggum.Compiler
@@ -23,7 +23,7 @@ let private resolveType name =
     result
 
 let private resolveTypes =
-    List.map (function 
+    List.map (function
               | Atom (Symbol name) -> resolveType name
               | other -> failwithf "Unrecognized type: %A" other)
 
@@ -91,6 +91,6 @@ let private prepareTopLevel = function
 
 /// Prepares the source file for assembling. Returns the intermediate
 /// representation of the source code.
-let prepare fileName stream : Assembly seq =
+let prepare (fileName : string) (stream : Stream) : Assembly seq =
     let forms = Reader.parse fileName stream
     forms |> Seq.map prepareTopLevel
diff --git a/Naggum.Assembler/Program.fs b/Naggum.Assembler/Program.fs
index 910aa74..acff804 100644
--- a/Naggum.Assembler/Program.fs
+++ b/Naggum.Assembler/Program.fs
@@ -5,32 +5,32 @@ open System.IO
 open System.Reflection
 open System.Reflection.Emit
 
-type ReturnCode =
+type private ReturnCode =
     | Success = 0
     | Error = 1
     | InvalidArguments = 2
 
-let printUsage () =
+let private printUsage () =
     let version = Assembly.GetExecutingAssembly().GetName().Version
     printfn "Naggum Assembler %A" version
     printfn "Usage: Naggum.Assembler [one or more file names]"
 
-let printError (error : Exception) =
+let private printError (error : Exception) =
     printfn "Error: %s" (error.ToString ())
 
-let save (assembly : AssemblyBuilder) =
+let private save (assembly : AssemblyBuilder) =
     let name = assembly.FullName
     assembly.Save name
     printfn "Assembly %s saved" name
 
-let assemble fileName =
+let private assemble fileName =
     use stream = File.OpenRead fileName
     let repr = Processor.prepare fileName stream
     let assemblies = Assembler.assemble repr
     assemblies |> Seq.iter save
 
-let nga =
-    function 
+let private nga =
+    function
     | [| "--help" |] ->
         printUsage ()
         ReturnCode.Success