diff --git a/src/iri.c b/src/iri.c

index 9b16639..da9dc7f 100644

--- a/src/iri.c

+++ b/src/iri.c

@@ -183,17 +183,12 @@ do_conversion (iconv_t cd, char *in, size_t inlen, char **out)

         }

       else if (errno == E2BIG) /* Output buffer full */

         {

-          char *new;

-

           tooshort++;

           done = len;

-          outlen = done + inlen * 2;

-          new = xmalloc (outlen + 1);

-          memcpy (new, s, done);

-          xfree (s);

-          s = new;

-          len = outlen;

-          *out = s + done;

+          len = done + inlen * 2;

+          s = xrealloc (s, len + 1);

+          *out = s + done - outlen;

+          outlen += inlen * 2;

         }

       else /* Weird, we got an unspecified error */

         {