diff --git a/doc/bugs/automatically_adding_metadata_fails_on_files_with_UTF-8_umlauts.mdwn b/doc/bugs/automatically_adding_metadata_fails_on_files_with_UTF-8_umlauts.mdwn
new file mode 100644
index 0000000000..f612a85dee
--- /dev/null
+++ b/doc/bugs/automatically_adding_metadata_fails_on_files_with_UTF-8_umlauts.mdwn
@@ -0,0 +1,67 @@
+### Please describe the problem.
+The recommended hook script does silently ignore files with non-ascii filenames.
+
+### What steps will reproduce the problem?
+see below.
+
+### What version of git-annex are you using? On what operating system?
+git-annex version: 6.20180112
+on NixOS i686
+
+### Please provide any additional information below.
+[[!format txt """
+[woffs@lapdoepp:/tmp] $ git init test
+Leeres Git-Repository in /tmp/test/.git/ initialisiert
+
+[woffs@lapdoepp:/tmp] $ cd test
+[woffs@lapdoepp:/tmp/test] (master #) $ git annex init
+init  ok
+(recording state in git...)
+[woffs@lapdoepp:/tmp/test] (master #) $ git config metadata.exiftool "CreateDate Model ImageSize FocusRange GPS FileType: NominalBitrate Title Artist Album Date: TrackNumber Year"l "CreateDate Model ImageSize FocusRange GPS FileType: NominalBitrate Title Artist Album Date: TrackNum
+                                                                                                                                                        git config annex.[woffs@lapdoepp:/tmp/test] (master #) $ git config annex.genmetadata true
+                                                                                                                                                        wget -O ./.git/ho[woffs@lapdoepp:/tmp/test] (master #) $ wget -O ./.git/hooks/pre-commit-annex http://git-annex.branchable.com/tips/automatically_adding_metadata/pre-commit-annex
+--2018-02-26 10:28:42--  http://git-annex.branchable.com/tips/automatically_adding_metadata/pre-commit-annex
+Auflösen des Hostnamens git-annex.branchable.com (git-annex.branchable.com)… 66.228.46.55, 2600:3c03::f03c:91ff:fedf:c0e5
+Verbindungsaufbau zu git-annex.branchable.com (git-annex.branchable.com)|66.228.46.55|:80 … verbunden.
+HTTP-Anforderung gesendet, auf Antwort wird gewartet … 200 OK
+Länge: 3035 (3,0K)
+Wird in »./.git/hooks/pre-commit-annex« gespeichert.
+
+./.git/hooks/pre-commit-annex              100%[=====================================================================================>]   2,96K  --.-KB/s    in 0s      
+
+2018-02-26 10:28:42 (75,8 MB/s) - »./.git/hooks/pre-commit-annex« gespeichert [3035/3035]
+
+                                                                                                                                                        chmod +x ./.git/h[woffs@lapdoepp:/tmp/test] (master #) $ chmod +x ./.git/hooks/pre-commit-annex
+                                                                                                                                                        wget http://git-a[woffs@lapdoepp:/tmp/test] (master #) $ wget http://git-annex.branchable.com/logo_small.png
+--2018-02-26 10:28:52--  http://git-annex.branchable.com/logo_small.png
+Auflösen des Hostnamens git-annex.branchable.com (git-annex.branchable.com)… 66.228.46.55, 2600:3c03::f03c:91ff:fedf:c0e5
+Verbindungsaufbau zu git-annex.branchable.com (git-annex.branchable.com)|66.228.46.55|:80 … verbunden.
+HTTP-Anforderung gesendet, auf Antwort wird gewartet … 200 OK
+Länge: 4749 (4,6K) [image/png]
+Wird in »logo_small.png« gespeichert.
+
+logo_small.png                             100%[=====================================================================================>]   4,64K  --.-KB/s    in 0s      
+
+2018-02-26 10:28:52 (108 MB/s) - »logo_small.png« gespeichert [4749/4749]
+
+                                                                                                                                                        cp logo_small.png[woffs@lapdoepp:/tmp/test] (master #%) $ cp logo_small.png lögö_smäll.png
+[woffs@lapdoepp:/tmp/test] (master #%) $ git annex add
+add logo_small.png ok
+add lögö_smäll.png ok
+(recording state in git...)
+[woffs@lapdoepp:/tmp/test] (master +) $ git annex sync
+commit 
+adding metadata for logo_small.png
+(recording state in git...)
+[master (Basis-Commit) e3f8647] git-annex in woffs@lapdoepp:/tmp/test
+ 2 files changed, 2 insertions(+)
+ create mode 120000 logo_small.png
+ create mode 120000 "l\303\266g\303\266_sm\303\244ll.png"
+ok
+
+[woffs@lapdoepp:/tmp/test] (master) $ 
+"""]]
+
+### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)
+
+git annex is great. :)