diff --git a/org/qmckl_jastrow_champ.org b/org/qmckl_jastrow_champ.org
index 3649e18..00f4c97 100644
--- a/org/qmckl_jastrow_champ.org
+++ b/org/qmckl_jastrow_champ.org
@@ -2205,7 +2205,7 @@ assert(fabs(asymp_jasb_doc[1]-asymp_jasb_hpc[1]) < 1.e-8);
      #+begin_src c :comments org :tangle (eval h_func) :noweb yes
 qmckl_exit_code qmckl_get_jastrow_champ_ee_distance_rescaled(qmckl_context context,
                                                              double* const distance_rescaled,
-                                                             int64_t const max_size);
+                                                             int64_t const size_max);
      #+end_src
 
      #+begin_src c :comments org :tangle (eval c) :noweb yes  :exports none