diff --git a/sw/ground_segment/wind/Makefile b/sw/ground_segment/wind/Makefile
index d8c3cdf3a8..620e7fd605 100644
--- a/sw/ground_segment/wind/Makefile
+++ b/sw/ground_segment/wind/Makefile
@@ -36,7 +36,7 @@ wind : wind.cmi
 wind : wind.ml
 	$(OCAMLC) -o $@ xml-light.cma glibivy-ocaml.cma lablgtk.cma str.cma lib-pprz.cma $< # To check
 	cat ../../../pprz_src_test.sh > $@
-	echo 'ocaml -I +lablgtk2 -I $$PAPARAZZI_SRC/sw/lib/ocaml xml-light.cma glibivy-ocaml.cma lablgtk.cma str.cma lib-pprz.cma $$PAPARAZZI_SRC/sw/ground_segment/wind/$< $$*' >> $@
+	echo 'ocaml -I +lablgtk2 -I $$PAPARAZZI_SRC/sw/lib/ocaml -I +xml-light xml-light.cma glibivy-ocaml.cma lablgtk.cma str.cma lib-pprz.cma $$PAPARAZZI_SRC/sw/ground_segment/wind/$< $$*' >> $@
 	chmod a+x $@
 
 
diff --git a/sw/tools/Makefile b/sw/tools/Makefile
index 4e444ea616..02c958435e 100644
--- a/sw/tools/Makefile
+++ b/sw/tools/Makefile
@@ -48,7 +48,7 @@ fp_syntax.cmo : fp_syntax.cmi
 	@echo OC $<
 	$(Q)$(OCAMLC) -o $@ ivy-ocaml.cma lib-pprz.cma $<
 	@cat ../../pprz_src_test.sh > $@
-	@echo '$(OCAML) -I $$PAPARAZZI_SRC/sw/lib/ocaml ivy-ocaml.cma lib-pprz.cma $$PAPARAZZI_BIN/$< $$*' >> $@
+	@echo '$(OCAML) -I +xml-light -I $$PAPARAZZI_SRC/sw/lib/ocaml ivy-ocaml.cma lib-pprz.cma $$PAPARAZZI_BIN/$< $$*' >> $@
 	@chmod a+x $@
 
 %.cmo : %.ml ../lib/ocaml/lib-pprz.cma