--- ncdump/dumplib.c.str 2010-02-11 23:41:03.000000000 +0100 +++ ncdump/dumplib.c 2010-02-11 23:41:17.000000000 +0100 @@ -1005,7 +1005,7 @@ char *prefix = "0X"; int prelen = strlen(prefix); - snprintf(sp, prelen + 1, prefix); + snprintf(sp, prelen + 1, "%s", prefix); sp += prelen; for(i = 0; i < size; i++) { int res;