diff --git a/resize/resize.ml b/resize/resize.ml
index 40a777c8f..33abaab0b 100644
--- a/resize/resize.ml
+++ b/resize/resize.ml
@@ -170,7 +170,7 @@ let main () =
     let dryrun = ref false in
     let expand = ref "" in
     let set_expand s =
-      if s = "" then error (f_"%s: empty --expand option") prog
+      if s = "" then error (f_"empty --expand option")
       else if !expand <> "" then error (f_"--expand option given twice")
       else expand := s
     in