diff --git a/common/unix.h b/common/unix.h
index c78d05cb2..d4155f946 100644
--- a/common/unix.h
+++ b/common/unix.h
@@ -18,9 +18,6 @@
 #ifndef _WINDOWS
 #ifndef __UNIX_H__
 #define __UNIX_H__
-	#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
-		#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP {0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_INITIALIZER}
-	#endif
 #include <unistd.h>
 
 typedef int SOCKET;