diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index 8973da65f..235453845 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -1973,7 +1973,7 @@ class MLComponent(Component):
             z3mls = os.path.join(self.sub_dir, 'z3ml')
             out.write('%s.cma: %s %s %s\n' % (z3mls, cmos, stubso, z3dllso))
             out.write('\t%s -o %s -I %s %s %s %s\n' % (OCAMLMKLIB, z3mls, self.sub_dir, stubso, cmos, LIBZ3))
-            out.write('%s.cmxa: %s %s %s\n' % (z3mls, cmxs, stubso, z3dllso))
+            out.write('%s.cmxa: %s %s %s %s.cma\n' % (z3mls, cmxs, stubso, z3dllso, z3mls))
             out.write('\t%s -o %s -I %s %s %s %s\n' % (OCAMLMKLIB, z3mls, self.sub_dir, stubso, cmxs, LIBZ3))
             out.write('%s.cmxs: %s.cmxa\n' % (z3mls, z3mls))
             out.write('\t%s -shared -o %s.cmxs -I %s %s.cmxa\n' % (OCAMLOPTF, z3mls, self.sub_dir, z3mls))