diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 174c05d..fad8418 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -159,4 +159,6 @@
 				   scrub.o \
 				   symlink.o \
 				   )
+
+xfs-$(CONFIG_XFS_RT)		+= scrub/rtbitmap.o
 endif