diff --git a/lib/libc/xdr/xdr_float.c b/lib/libc/xdr/xdr_float.c
index 0ffbeb3358bc..3966320b7298 100644
--- a/lib/libc/xdr/xdr_float.c
+++ b/lib/libc/xdr/xdr_float.c
@@ -56,7 +56,7 @@ static char *rcsid = "$FreeBSD$";
 
 #if defined(__m68k__) || defined(__sparc__) || defined(__i386__) || \
     defined(__mips__) || defined(__ns32k__) || defined(__alpha__) || \
-    defined(__arm32__) || defined(__ppc__)
+    defined(__arm32__) || defined(__ppc__) || defined(__ia64__)
 #include <machine/endian.h>
 #define IEEEFP
 #endif