diff --git a/Foundation/CPValueTransformer.j b/Foundation/CPValueTransformer.j
index 29bfcf6f8..f3440e59c 100644
--- a/Foundation/CPValueTransformer.j
+++ b/Foundation/CPValueTransformer.j
@@ -23,8 +23,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-@import <Foundation/CPObject.j>
-@import <Foundation/CPDictionary.j>
+@import "CPObject.j"
+@import "CPDictionary.j"
 
 
 var transformerMap = [CPDictionary dictionary];
@@ -79,7 +79,7 @@ var transformerMap = [CPDictionary dictionary];
 
 // builtin transformers
 
-@implementation CPNegateBooleanTransformer
+@implementation CPNegateBooleanTransformer : CPValueTransformer
 
 + (BOOL)allowsReverseTransformation
 {
@@ -103,7 +103,7 @@ var transformerMap = [CPDictionary dictionary];
 
 @end
 
-@implementation CPIsNilTransformer
+@implementation CPIsNilTransformer : CPValueTransformer
 
 + (BOOL)allowsReverseTransformation
 {
@@ -122,7 +122,7 @@ var transformerMap = [CPDictionary dictionary];
 
 @end
 
-@implementation CPIsNotNilTransformer
+@implementation CPIsNotNilTransformer : CPValueTransformer
 
 + (BOOL)allowsReverseTransformation
 {
@@ -141,7 +141,7 @@ var transformerMap = [CPDictionary dictionary];
 
 @end
 
-@implementation CPUnarchiveFromDataTransformer
+@implementation CPUnarchiveFromDataTransformer : CPValueTransformer
 
 + (BOOL)allowsReverseTransformation
 {
@@ -170,7 +170,7 @@ CPIsNilTransformerName          = @"CPIsNilTransformerName";
 CPIsNotNilTransformerName       = @"CPIsNotNilTransformerName";
 CPUnarchiveFromDataTransformerName = @"CPUnarchiveFromDataTransformerName";
 
-[CPValueTransformer setValueTransformer:[CPNegateBooleanTransformer new] forName:CPNegateBooleanTransformerName];
-[CPValueTransformer setValueTransformer:[CPIsNilTransformer new] forName:CPIsNilTransformerName];
-[CPValueTransformer setValueTransformer:[CPIsNotNilTransformer new] forName:CPIsNotNilTransformerName];
-[CPValueTransformer setValueTransformer:[CPUnarchiveFromDataTransformer new] forName:CPUnarchiveFromDataTransformerName];
+[CPValueTransformer setValueTransformer:[[CPNegateBooleanTransformer alloc] init] forName:CPNegateBooleanTransformerName];
+[CPValueTransformer setValueTransformer:[[CPIsNilTransformer alloc] init] forName:CPIsNilTransformerName];
+[CPValueTransformer setValueTransformer:[[CPIsNotNilTransformer alloc] init] forName:CPIsNotNilTransformerName];
+[CPValueTransformer setValueTransformer:[[CPUnarchiveFromDataTransformer alloc] init] forName:CPUnarchiveFromDataTransformerName];
\ No newline at end of file
diff --git a/Foundation/Foundation.j b/Foundation/Foundation.j
index 4bf1460e4..f2066ed2f 100755
--- a/Foundation/Foundation.j
+++ b/Foundation/Foundation.j
@@ -56,6 +56,7 @@
 @import "CPURLResponse.j"
 @import "CPUserSessionManager.j"
 @import "CPValue.j"
+@import "CPValueTransformer.j"
 
 /*! @mainpage
     Cappuccino is distributed under the @ref license "GNU LGPL".