diff --git a/src/CUDAStream.cu b/src/CUDAStream.cu
index 163a3f1..9b1b36d 100644
--- a/src/CUDAStream.cu
+++ b/src/CUDAStream.cu
@@ -11,7 +11,7 @@ __global__ void copy_kernel(const T * a, T * c)
 template <class T>
 void CUDAStream<T>::copy()
 {
-  copy<<<1024, 1024>>>(a, c);
+  copy_kernel<<<1024, 1024>>>(d_a, d_c);
 }
 
 template <class T>
diff --git a/src/CUDAStream.h b/src/CUDAStream.h
index ab9ac38..9348b29 100644
--- a/src/CUDAStream.h
+++ b/src/CUDAStream.h
@@ -5,16 +5,17 @@
 template <class T>
 class CUDAStream : public Stream<T>
 {
-  public:
-    void copy();
-    void add();
-    void mul();
-    void triad();
-
   private:
     // Device side pointers to arrays
     T *d_a;
     T *d_b;
     T *d_c;
 
+
+  public:
+    void copy();
+    void add();
+    void mul();
+    void triad();
+
 };
diff --git a/src/main.cpp b/src/main.cpp
index 9e22b89..76c3da4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -16,6 +16,7 @@ int main(int argc, char *argv[])
 
   Stream<double> *stream;
   stream = new CUDAStream<double>();
+  stream->copy();
 
   delete[] stream;