1 files changed, 1 insertions, 1 deletions

diff --git a/src/fns.c b/src/fns.c
index c45d9e31ef2..09ce8c1b597 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -1076,7 +1076,7 @@ an error is signaled.  */)
       EMACS_INT converted = str_to_unibyte (SDATA (string), str, chars, 0);
 
       if (converted < chars)
-        error ("Can't convert the %dth character to unibyte", converted);
+        error ("Can't convert the %"pEd"th character to unibyte", converted);
       string = make_unibyte_string ((char *) str, chars);
       xfree (str);
     }