diff --git a/sw/ground_segment/visu3d/Makefile b/sw/ground_segment/visu3d/Makefile
index bf4811f987..707d9f2684 100644
--- a/sw/ground_segment/visu3d/Makefile
+++ b/sw/ground_segment/visu3d/Makefile
@@ -1,5 +1,5 @@
 OCAMLOPT0 = ocamlopt
-OCAMLC    = ocamlc -I +xml-light
+OCAMLC    = ocamlc $(shell ocamlfind query -r -i-format xml-light)
 
 MLFLAGS   =  $(shell ocamlfind query -r -i-format lablGL)  $(shell ocamlfind query -r -i-format lablgtk2) $(shell ocamlfind query -r -i-format camlimages) -I ../../lib/ocaml