1 files changed, 2 insertions, 1 deletions

diff --git a/src/doprnt.c b/src/doprnt.c
index 2e8f498ddcf..1d792a9a291 100644
--- a/src/doprnt.c
+++ b/src/doprnt.c
@@ -301,7 +301,8 @@ doprnt1 (lispstrings, buffer, bufsize, format, format_end, nargs, args)
             case 'c':
               if (cnt == nargs)
                 error ("not enough arguments for format string");
-              tem = CHAR_STRING ((int) (EMACS_INT) args[cnt], charbuf, string);
+              tem = CHAR_STRING ((int) (EMACS_INT) args[cnt], charbuf);
+              string = charbuf;
               cnt++;
               string[tem] = 0;
               width = strwidth (string, tem);