--- a/mathexpr/Makefile	2022-03-22 10:51:43.081062080 +0100
+++ b/mathexpr/Makefile	2022-03-22 10:53:37.226190652 +0100
@@ -72,6 +72,6 @@
 # Dependencies
 depend:
-	$(OCAMLDEP) $(OCAMLINCS) *.mli *.ml > depend
+	$(OCAMLDEP) -I $(XMLLIGHTDIR) $(OCAMLINCSLOCAL) *.mli *.ml > depend
 
 include depend