diff --git a/tools/ocaml/common.make b/tools/ocaml/common.make
index 3b14dfb..5f3579a 100644
--- a/tools/ocaml/common.make
+++ b/tools/ocaml/common.make
@@ -8,9 +8,7 @@ OCAMLYACC ?= ocamlyacc
 
 CFLAGS ?= -Wall -fPIC -O2
 
-XEN_ROOT ?= $(TOPLEVEL)/../xen-unstable.hg
-XEN_DIST_ROOT ?= $(XEN_ROOT)/dist/install
-CFLAGS += -I$(XEN_DIST_ROOT)/usr/include
+CFLAGS += -I$(TOPLEVEL)/../include -I$(TOPLEVEL)/../libxc
 
 OCAMLOPTFLAG_G := $(shell $(OCAMLOPT) -h 2>&1 | sed -n 's/^  *\(-g\) .*/\1/p')
 OCAMLOPTFLAGS = $(OCAMLOPTFLAG_G) -ccopt "$(LDFLAGS)" -dtypes $(OCAMLINCLUDE) -cc $(CC) -w F -warn-error F