diff --git a/org/qmckl_mo.org b/org/qmckl_mo.org
index bdc6383..d44cee3 100644
--- a/org/qmckl_mo.org
+++ b/org/qmckl_mo.org
@@ -282,7 +282,7 @@ interface
     implicit none
     integer (c_int64_t) , intent(in)  , value :: context
     double precision, intent(out)             :: coefficient(*)
-    integer (c_int64_t) , intent(int), value  :: size_max
+    integer (c_int64_t) , intent(in), value   :: size_max
   end function qmckl_get_mo_basis_coefficient
 end interface