diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 0115bf9..e6b2be3 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -11,6 +11,8 @@
 obj-$(CONFIG_PPC64)	+= checksum_64.o copypage_64.o copyuser_64.o \
 			   memcpy_64.o usercopy_64.o mem_64.o
 obj-$(CONFIG_PPC_ISERIES) += e2a.o
+obj-$(CONFIG_XMON)	+= sstep.o
+
 ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_SMP)	+= locks.o
 obj-$(CONFIG_DEBUG_KERNEL) += sstep.o