diff --git a/main b/main
index 7eb0e19..7e467d5 100755
Binary files a/main and b/main differ
diff --git a/main.cc b/main.cc
index a94c260..8bfcd31 100755
--- a/main.cc
+++ b/main.cc
@@ -9,8 +9,10 @@ int main() {
   auto buf = check_output({"echo", "\"It works!\""});
   std::cout << buf.buf.data() << " :: " << buf.length << std::endl; 
 
-  auto buf2 = check_output("cat subprocess.hpp");
-  std::cout << buf2.buf.data() << " :: " << buf2.length << std::endl;
+  buf = check_output("cat subprocess.hpp");
+  //std::cout << buf2.buf.data() << " :: " << buf2.length << std::endl;
+  //
+
 
   return 0;
 }
diff --git a/subprocess.hpp b/subprocess.hpp
index 297834e..9630053 100755
--- a/subprocess.hpp
+++ b/subprocess.hpp
@@ -279,6 +279,22 @@ public:
   Buffer(size_t cap) { buf.resize(cap); }
   void add_cap(size_t cap) { buf.resize(cap); }
 
+#if 0
+  Buffer(const Buffer& other):
+    buf(other.buf),
+    length(other.length)
+  {
+    std::cout << "COPY" << std::endl;
+  }
+
+  Buffer(Buffer&& other):
+    buf(std::move(other.buf)),
+    length(other.length)
+  {
+    std::cout << "MOVE" << std::endl;
+  }
+#endif
+
 public:
   std::vector<char> buf;
   size_t length = 0;
@@ -1007,7 +1023,7 @@ namespace detail
     if (retcode) {
       throw CalledProcessError("Command failed");
     }
-    return (res.first);
+    return std::move(res.first);
   }
 
 }
@@ -1021,13 +1037,13 @@ int call(Args&&... args)
 template <typename... Args>
 OutBuffer check_output(std::initializer_list<const char*> plist, Args&&... args)
 {
-  return detail::check_output_impl(plist, std::forward<Args>(args)...);
+  return (detail::check_output_impl(plist, std::forward<Args>(args)...));
 }
 
 template <typename... Args>
 OutBuffer check_output(const std::string& arg, Args&&... args)
 {
-  return detail::check_output_impl(arg, std::forward<Args>(args)...);
+  return (detail::check_output_impl(arg, std::forward<Args>(args)...));
 }
 
 };