diff --git a/Makefile b/Makefile
index 4f0c3e35a..d7600707d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,17 @@
 .PHONY: all clean test
 
+ifdef CROSS
+  OCAMLLIB=$(abspath $(shell ocamlfind printconf path))
+  OCAMLBUILD=ocamlbuild -toolchain windows -I src -I lib -I parser -use-menhir -use-ocamlfind -classic-display \
+   -menhir "menhir --infer --explain" \
+	  -ocamldep "ocamldep -predicates custom_ppx -ppx '$(OCAMLLIB)/ppx_deriving/ppx_deriving $(OCAMLLIB)/ppx_deriving/ppx_deriving_show.cma $(OCAMLLIB)/ppx_deriving_yojson/ppx_deriving_yojson.cma'" \
+	  -ocamlc "ocamlc -predicates custom_ppx -ppx '$(OCAMLLIB)/ppx_deriving/ppx_deriving $(OCAMLLIB)/ppx_deriving/ppx_deriving_show.cma $(OCAMLLIB)/ppx_deriving_yojson/ppx_deriving_yojson.cma'" \
+	  -ocamlopt "ocamlopt -predicates custom_ppx -ppx '$(OCAMLLIB)/ppx_deriving/ppx_deriving $(OCAMLLIB)/ppx_deriving/ppx_deriving_show.cma $(OCAMLLIB)/ppx_deriving_yojson/ppx_deriving_yojson.cma'"
+else
 OCAMLBUILD=ocamlbuild -I src -I lib -I parser -use-menhir -use-ocamlfind -classic-display \
  -menhir "menhir --infer --explain"
+endif
+
 FLAVOR?=native
 TARGETS=Kremlin.$(FLAVOR) Tests.$(FLAVOR)