diff --git a/headers/posix/pthread.h b/headers/posix/pthread.h
index 0b063784f8..7c79e99a21 100644
--- a/headers/posix/pthread.h
+++ b/headers/posix/pthread.h
@@ -6,6 +6,7 @@
 #define _PTHREAD_H_
 
 
+#include <sched.h>
 #include <stdint.h>
 #include <time.h>
 
diff --git a/headers/posix/semaphore.h b/headers/posix/semaphore.h
index 1cd86f0702..223fadfdea 100644
--- a/headers/posix/semaphore.h
+++ b/headers/posix/semaphore.h
@@ -5,6 +5,7 @@
 #ifndef _SEMAPHORE_H_
 #define _SEMAPHORE_H_
 
+#include <fcntl.h>
 #include <stdint.h>
 #include <sys/cdefs.h>
 #include <time.h>