diff --git a/include/fc/thread/thread.hpp b/include/fc/thread/thread.hpp
index aea55da..933832f 100644
--- a/include/fc/thread/thread.hpp
+++ b/include/fc/thread/thread.hpp
@@ -22,8 +22,8 @@ namespace fc {
   class thread {
     public:
       thread( const std::string& name = "" );
-      thread( thread&& m );
-      thread& operator=(thread&& t );
+      thread( thread&& m ) = delete;
+      thread& operator=(thread&& t ) = delete;
 
       /**
        *  Returns the current thread.
@@ -130,7 +130,7 @@ namespace fc {
           return wait_any_until(fc::move(proms), fc::time_point::now()+timeout_us );
        }
     private:
-      thread( class thread_d* );
+      thread( class thread_d* ); // parameter is ignored, will create a new thread_d
       friend class promise_base;
       friend class task_base;
       friend class thread_d;
diff --git a/src/thread/thread.cpp b/src/thread/thread.cpp
index 4da20b3..dd1dbdc 100644
--- a/src/thread/thread.cpp
+++ b/src/thread/thread.cpp
@@ -98,16 +98,6 @@ namespace fc {
      my = new thread_d(*this);
    }
 
-   thread::thread( thread&& m ) {
-    my = m.my;
-    m.my = 0;
-   }
-
-   thread& thread::operator=(thread&& t ) {
-      fc_swap(t.my,my);
-      return *this;
-   }
-
    thread::~thread() {
       //wlog( "my ${n}", ("n",name()) );
       if( my )