diff --git a/headers/posix/pthread.h b/headers/posix/pthread.h
index 9f84d3255e..50a3ca5eb2 100644
--- a/headers/posix/pthread.h
+++ b/headers/posix/pthread.h
@@ -5,9 +5,8 @@
 #define _PTHREAD_H_
 
 #include <time.h>
-#include <OS.h>
 
-typedef thread_id 					pthread_t;
+typedef int							pthread_t;
 typedef struct  _pthread_attr		*pthread_attr_t;
 typedef struct  _pthread_mutex		*pthread_mutex_t;
 typedef struct  _pthread_mutexattr	*pthread_mutexattr_t;