} else if (!strcasecmp(filename, "_roompic_")) {
assoc_file_name(pathname, sizeof pathname, &CC->room, ctdl_image_dir);
} else {
- for (a = 0; !IsEmptyStr(&filename[0]); ++a) {
+ for (a = 0; !IsEmptyStr(&filename[a]); ++a) {
filename[a] = tolower(filename[a]);
if (filename[a] == '/') {
filename[a] = '_';