diff --git a/ipmitool/include/ipmitool/helper.h b/ipmitool/include/ipmitool/helper.h
index 3bf4f9d..a5e0d6b 100644
--- a/ipmitool/include/ipmitool/helper.h
+++ b/ipmitool/include/ipmitool/helper.h
@@ -38,6 +38,15 @@
 #include <stdio.h>
 #include <string.h>
 
+#ifndef TRUE
+#define TRUE    1
+#endif
+
+#ifndef FALSE
+#define FALSE   0
+#endif
+
+
 struct ipmi_intf;
 
 struct valstr {