diff --git a/chipset_enable.c b/chipset_enable.c
index 80259b5..5a0e826 100644
--- a/chipset_enable.c
+++ b/chipset_enable.c
@@ -24,8 +24,6 @@
  * Contains the chipset specific flash enables.
  */
 
-#define _LARGEFILE64_SOURCE
-
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>