diff --git a/lib/cpp/src/thrift/concurrency/Thread.h b/lib/cpp/src/thrift/concurrency/Thread.h
old mode 100644
new mode 100755
index dc3c748..164df0c
--- a/lib/cpp/src/thrift/concurrency/Thread.h
+++ b/lib/cpp/src/thrift/concurrency/Thread.h
@@ -86,9 +86,9 @@
   static inline bool is_current(id_t t) { return t == boost::this_thread::get_id(); }
   static inline id_t get_current() { return boost::this_thread::get_id(); }
 #else
-  typedef uint64_t id_t;
-  static inline bool is_current(pthread_t t) { return pthread_equal(pthread_self(), t); }
-  static inline id_t get_current() { return (Thread::id_t)pthread_self(); }
+  typedef pthread_t id_t;
+  static inline bool is_current(id_t t) { return pthread_equal(pthread_self(), t); }
+  static inline id_t get_current() { return pthread_self(); }
 #endif
 
   virtual ~Thread() {};