diff --git a/src/global.h b/src/global.h
index 6f13703c211e006d82e0e95ec3dfd47115a2617f..2e8eb850925b2d8b8fe63a3b82e08f386cf6b30e 100644
--- a/src/global.h
+++ b/src/global.h
@@ -6,6 +6,11 @@
 #ifndef GLOBAL_H
 #define GLOBAL_H
 
+#ifndef _LARGEFILE_SOURCE
+#  define _FILE_OFFSET_BITS 64
+#  define _LARGEFILE_SOURCE
+#endif
+
 /*
  * Some structure forward declarations are needed.
  */