diff --git a/tools/debugger/kdd/Makefile b/tools/debugger/kdd/Makefile
index a79d7cfdf3..72ad1b9601 100644
--- a/tools/debugger/kdd/Makefile
+++ b/tools/debugger/kdd/Makefile
@@ -2,6 +2,7 @@ XEN_ROOT = $(CURDIR)/../../..
 include $(XEN_ROOT)/tools/Rules.mk
 
 CFLAGS  += $(CFLAGS_libxenctrl)
+CFLAGS  += -DXC_WANT_COMPAT_MAP_FOREIGN_API
 LDLIBS  += $(LDLIBS_libxenctrl)
 
 CFILES  := kdd.c kdd-xen.c