diff --git a/src/std/c_private.h b/src/std/c_private.h
index 2b1c6a3849..2c2989d56e 100644
--- a/src/std/c_private.h
+++ b/src/std/c_private.h
@@ -72,6 +72,9 @@ typedef struct stat csync_stat_t;
 #define write _write
 #endif
 
+#ifndef O_NOATIME
+#define O_NOATIME 0
+#endif
 
 #endif //_C_PRIVATE_H