diff --git a/src/tink/macro/BuildCache.hx b/src/tink/macro/BuildCache.hx
index 09b9e2e..7664655 100644
--- a/src/tink/macro/BuildCache.hx
+++ b/src/tink/macro/BuildCache.hx
@@ -31,23 +31,23 @@ typedef BuildContext3 = {>BuildContext2,
   type3:Type,
 }
 
-class BuildCache { 
-  
+class BuildCache {
+
   @:persistent static var cache = new Map();
-  
-  static public function getType3(name, ?types, ?pos:Position, build:BuildContext3->TypeDefinition) {
+
+  static public function getType3(name, ?types, ?pos:Position, build:BuildContext3->TypeDefinition, ?normalizer:Type->Type) {
      if (types == null)
       switch Context.getLocalType() {
         case TInst(_.toString() == name => true, [t1, t2, t3]):
           types = { t1: t1, t2: t2, t3: t3 };
         default:
           throw 'assert';
-      }  
-      
+      }
+
     var t1 = types.t1.toComplexType(),
         t2 = types.t2.toComplexType(),
         t3 = types.t2.toComplexType();
-        
+
     return getType(name, (macro : { t1: $t1, t2: $t2, t3: $t3 } ).toType(), pos, function (ctx) return build({
       type: types.t1,
       type2: types.t2,
@@ -55,62 +55,62 @@ class BuildCache {
       pos: ctx.pos,
       name: ctx.name,
       usings: ctx.usings
-    }));   
+    }), normalizer);
   }
-  
-  static public function getTypeN(name, ?types, ?pos:Position, build:BuildContextN->TypeDefinition) {
-    
+
+  static public function getTypeN(name, ?types, ?pos:Position, build:BuildContextN->TypeDefinition, ?normalizer:Type->Type) {
+
     if (pos == null)
       pos = Context.currentPos();
-    
+
     if (types == null)
       switch Context.getLocalType() {
         case TInst(_.toString() == name => true, params):
           types = params;
         default:
           throw 'assert';
-      }  
-      
+      }
+
     var compound = ComplexType.TAnonymous([for (i in 0...types.length) {
       name: 't$i',
       pos: pos,
       kind: FVar(switch types[i] {
-        case TInst(_.get().kind => KExpr(e), _): 
+        case TInst(_.get().kind => KExpr(e), _):
           TPath('tink.macro.ConstParam'.asTypePath([TPExpr(e)]));
         case t: t.toComplex();
       }),
     }]).toType();
-        
+
     return getType(name, compound, pos, function (ctx) return build({
       types: types,
       pos: ctx.pos,
       name: ctx.name,
       usings: ctx.usings
-    }));
-  }  
-  
-  static public function getType2(name, ?types, ?pos:Position, build:BuildContext2->TypeDefinition) {
+    }), normalizer);
+  }
+
+  static public function getType2(name, ?types, ?pos:Position, build:BuildContext2->TypeDefinition, ?normalizer:Type->Type) {
     if (types == null)
       switch Context.getLocalType() {
         case TInst(_.toString() == name => true, [t1, t2]):
           types = { t1: t1, t2: t2 };
         default:
           throw 'assert';
-      }  
-      
+      }
+
     var t1 = types.t1.toComplexType(),
         t2 = types.t2.toComplexType();
-        
+
     return getType(name, (macro : { t1: $t1, t2: $t2 } ).toType(), pos, function (ctx) return build({
       type: types.t1,
       type2: types.t2,
       pos: ctx.pos,
       name: ctx.name,
       usings: ctx.usings
-    }));
+    }), normalizer);
   }
 
-  static public function getParams(name:String, ?pos:Position)     
+  static public function getParams(name:String, ?pos:Position)
     return
       switch Context.getLocalType() {
         case TInst(_.toString() == name => true, v):
@@ -119,9 +119,9 @@ class BuildCache {
           pos.makeFailure('Expected $name');
         case v:
           pos.makeFailure('$v should be a class');
-      }  
+      }
 
-  static public function getParam(name:String, ?pos:Position)     
+  static public function getParam(name:String, ?pos:Position)
     return
       getParams(name, pos)
         .flatMap(function (args:Array<Type>) return switch args {
@@ -130,18 +130,18 @@ class BuildCache {
           default: pos.makeFailure('too many parameters');
         });
 
-  static public function getType(name, ?type, ?pos:Position, build:BuildContext->TypeDefinition) {
-    
+  static public function getType(name, ?type, ?pos:Position, build:BuildContext->TypeDefinition, ?normalizer:Type->Type) {
+
     if (type == null)
       type = getParam(name, pos).sure();
-      
-    var forName = 
+
+    var forName =
       switch cache[name] {
-        case null: cache[name] = new Group(name);
+        case null: cache[name] = new Group(name, normalizer);
         case v: v;
       }
-    
-    var ret = forName.get(type, pos.sanitize(), build);  
+
+    var ret = forName.get(type, pos.sanitize(), build);
     ret.getFields();// workaround for https://github.com/HaxeFoundation/haxe/issues/7905
     return ret;
   }
@@ -152,23 +152,24 @@ private typedef Entry = {
 }
 
 private class Group {
-  
+
   var name:String;
   var counter = 0;
-  var entries = new TypeMap<Entry>();
-  
-  public function new(name) {
+  var entries:TypeMap<Entry>;
+
+  public function new(name, ?normalizer) {
     this.name = name;
+    this.entries = new TypeMap(normalizer);
   }
-  
+
   public function get(type:Type, pos:Position, build:BuildContext->TypeDefinition):Type {
-    
+
     function make(path:String) {
       var usings = [];
       var def = build({
-        pos: pos, 
-        type: type, 
-        usings: usings, 
+        pos: pos,
+        type: type,
+        usings: usings,
         name: path.split('.').pop()
       });
 
@@ -177,15 +178,15 @@ private class Group {
       return Context.getType(path);
     }
 
-    function doMake() 
-      while (true) 
+    function doMake()
+      while (true)
         switch '$name${counter++}' {
           case _.definedType() => Some(_):
           case v:
             return make(v);
-        } 
+        }
 
-    return 
+    return
       switch entries.get(type) {
         case null:
           doMake();
diff --git a/tests/Run.hx b/tests/Run.hx
index 7a16177..03b7515 100644
--- a/tests/Run.hx
+++ b/tests/Run.hx
@@ -3,8 +3,8 @@ package ;
 import haxe.unit.*;
 
 class Run {
-  #if !macro 
-  static function main() 
+  #if !macro
+  static function main()
     test();//It compiles ...
   #else
   static var cases:Array<TestCase> = [
@@ -19,12 +19,13 @@ class Run {
   macro static function test() {
     var runner = new TestRunner();
     tink.macro.ClassBuilder;
+    tink.macro.BuildCache;
     for (c in cases)
       runner.add(c);
     runner.run();
     if (!runner.result.success)
       haxe.macro.Context.error(runner.result.toString(), haxe.macro.Context.currentPos());
-    
+
     return macro {
       trace('Let\'s ship it!');
     }