diff --git a/eepromutils/eepmake.c b/eepromutils/eepmake.c
index 8cd5369..5b60b1d 100644
--- a/eepromutils/eepmake.c
+++ b/eepromutils/eepmake.c
@@ -10,6 +10,7 @@
 #include <stdbool.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <endian.h>
 
 #include "eeptypes.h"