diff --git a/ocaml/Qmcchem_result.ml b/ocaml/Qmcchem_result.ml
index 12aa15d..102bae7 100644
--- a/ocaml/Qmcchem_result.ml
+++ b/ocaml/Qmcchem_result.ml
@@ -258,8 +258,8 @@ let command () =
   let h = Command_line.get "histogram" in
   let t = Command_line.get "table" in
   let p = Command_line.get "plot" in
-  let rmin = Command_line.get "m" in
-  let rmax = Command_line.get "n" in
+  let rmin = Command_line.get "rmin" in
+  let rmax = Command_line.get "rmax" in
 
   let ezfio_file =
     match Command_line.anon_args () with