diff --git a/usr.sbin/Makefile b/usr.sbin/Makefile
index 163813a6dc40..f1e69438fa28 100644
--- a/usr.sbin/Makefile
+++ b/usr.sbin/Makefile
@@ -193,6 +193,10 @@ SUBDIR+=i4b
 .endif
 .endif
 
+.if ${MACHINE_ARCH} == "amd64"
+SUBDIR+= btxld
+.endif
+
 .if ${MACHINE} == "i386"
 SUBDIR+=boot0cfg
 .endif