diff --git a/lib/hpm2.c b/lib/hpm2.c
index 6f75f03..e7d6c03 100644
--- a/lib/hpm2.c
+++ b/lib/hpm2.c
@@ -33,6 +33,7 @@
 #include <ipmitool/hpm2.h>
 #include <ipmitool/ipmi_intf.h>
 #include <ipmitool/log.h>
+#include <ipmitool/bswap.h>
 
 #if HAVE_PRAGMA_PACK
 # pragma pack(push, 1)