diff --git a/src/Matrix.cc b/src/Matrix.cc
index 3308ba4..a00b01e 100755
--- a/src/Matrix.cc
+++ b/src/Matrix.cc
@@ -101,7 +101,7 @@ Matrix::Init(Handle<Object> target) {
   NODE_SET_PROTOTYPE_METHOD(ctor, "setWithMask", SetWithMask);
   NODE_SET_PROTOTYPE_METHOD(ctor, "meanWithMask", MeanWithMask);
   NODE_SET_PROTOTYPE_METHOD(ctor, "shift", Shift);
-  NODE_SET_PROTOTYPE_METHOD(ctor, "release", Dispose);
+  NODE_SET_PROTOTYPE_METHOD(ctor, "release", Release);
 
   target->Set(NanNew("Matrix"), ctor->GetFunction());
 };
@@ -2257,9 +2257,11 @@ NAN_METHOD(Matrix::Shift){
 
 NAN_METHOD(Matrix::Release)
 {
-	SETUP_FUNCTION(Matrix)
+	NanScope();
 
-	mat.release();
+	Matrix *self = ObjectWrap::Unwrap<Matrix>(args.This());
+
+	self->mat.release();
 
 	NanReturnUndefined();
 }