1 diff --git a/src/etag.c b/src/etag.c
2 index 9ff585f..e7e9e3f 100644
5 @@ -44,7 +44,7 @@ int etag_mutate(buffer *mut, buffer *etag) {
8 buffer_copy_string_len(mut, CONST_STR_LEN("\""));
9 - buffer_append_long(mut, h);
10 + buffer_append_off_t(mut, h);
11 buffer_append_string_len(mut, CONST_STR_LEN("\""));