diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 6fb06fbbd..260ae5b87 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -46,9 +46,6 @@ typedef struct {
 
 typedef long pthread_mutexattr_t;
 
-#define  PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP  PTHREAD_RECURSIVE_MUTEX_INITIALIZER
-#define  PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP PTHREAD_ERRORCHECK_MUTEX_INITIALIZER
-
 enum {
     PTHREAD_MUTEX_NORMAL = 0,
     PTHREAD_MUTEX_RECURSIVE = 1,