--- a/lib/fts.c	2018-06-24 06:52:06.000000000 +0200
+++ a/lib/fts.c	2018-07-10 14:08:32.382614958 +0200
@@ -1551,7 +1551,7 @@ mem1:                           saved_er
 
                 /* Store dirent.d_ino, in case we need to sort
                    entries before processing them.  */
-                p->fts_statp->st_ino = D_INO (dp);
+                memcpy(&p->fts_statp->st_ino, &dp, sizeof(p->fts_statp->st_ino));
 
                 /* Build a file name for fts_stat to stat. */
                 if (ISSET(FTS_NOCHDIR)) {