diff --git a/include/os/os.h b/include/os/os.h
index 53a6cef96a..0135865461 100644
--- a/include/os/os.h
+++ b/include/os/os.h
@@ -22,11 +22,13 @@ extern "C" {
 
 #include <assert.h>
 #include <ctype.h>
+#include <dirent.h>
 #include <errno.h>
 #include <float.h>
 #include <inttypes.h>
 #include <locale.h>
 #include <math.h>
+#include <sched.h>
 #include <setjmp.h>
 #include <signal.h>
 #include <stdarg.h>
@@ -36,18 +38,14 @@ extern "C" {
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <time.h>
-#include <wctype.h>
-#include <wchar.h>
-#include <sched.h>
-#include <ctype.h>
-#include <errno.h>
-#include <float.h>
-#include <math.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <dirent.h>
+#include <time.h>
 #include <unistd.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include <sys/mman.h>
 
 #include "osAtomic.h"
 #include "osDef.h"