diff --git a/include/pthread.h b/include/pthread.h
index 8baae8c625d8..7f4bbb24b7e1 100644
--- a/include/pthread.h
+++ b/include/pthread.h
@@ -60,7 +60,7 @@
 #define _POSIX_THREADS
 #define _POSIX_THREAD_ATTR_STACKADDR
 #define _POSIX_THREAD_ATTR_STACKSIZE
-#define _POSIX_THREAD_PRIORITY_SCHEDULING
+/* #define _POSIX_THREAD_PRIORITY_SCHEDULING */
 /* #define _POSIX_THREAD_PRIO_INHERIT   */
 /* #define _POSIX_THREAD_PRIO_PROTECT   */
 /* #define _POSIX_THREAD_PROCESS_SHARED */