diff --git a/gollem/docs/CREDITS b/gollem/docs/CREDITS
index d34b7bb8e65..65cbad090a4 100644
--- a/gollem/docs/CREDITS
+++ b/gollem/docs/CREDITS
@@ -23,6 +23,7 @@ Catalan                 Jordi Giralt <projecte.k2@upcnet.es>
 Chinese (Traditional)   David Chang <david@tmv.gov.tw>
 Croatian                Valentin Vidic <valentin.vidic@carnet.hr>
 Czech                   Pavel Chytil <pchytil@asp.ogi.edu>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Erling Preben Hansen <erling@eph.dk>
 Dutch                   Jan Kuipers <jrkuipers@lauwerscollege.nl>
diff --git a/horde/docs/CREDITS b/horde/docs/CREDITS
index 0db26280fa4..dc19c66b57a 100644
--- a/horde/docs/CREDITS
+++ b/horde/docs/CREDITS
@@ -36,6 +36,7 @@ Czech                   Pavel Chytil <paja@asp.ogi.edu>
                         Jan Krivanek <honza@atack.cz>
                         Petra Kostinkova <kostinkova.petra@active24.cz>
                         Michal Foist <foist.michal@active24.cz>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>
diff --git a/imp/docs/CREDITS b/imp/docs/CREDITS
index e1a92084316..3d2cad3d484 100644
--- a/imp/docs/CREDITS
+++ b/imp/docs/CREDITS
@@ -46,6 +46,7 @@ Czech                   Pavel Chytil <pchytil@asp.ogi.edu>
                         Jan Krivanek <honza@atack.cz>
                         Petra Kostinkova <kostinkova.petra@active24.cz>
                         Michal Foist <foist.michal@active24.cz>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>
diff --git a/ingo/docs/CREDITS b/ingo/docs/CREDITS
index 3b1d57379b7..7770031bac8 100644
--- a/ingo/docs/CREDITS
+++ b/ingo/docs/CREDITS
@@ -23,6 +23,7 @@ Chinese (Simplified)    Anna Chen <annachen2008@yahoo.com.cn>
 Chinese (Traditional)   David Chang <david@tmv.gov.tw>
 Croatian                Matej Vela <matej.vela@carnet.hr>
 Czech                   Pavel Chytil <pavel@chytil.tk>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>
                         Erling Preben Hansen <erling@eph.dk>
diff --git a/kronolith/docs/CHANGES b/kronolith/docs/CHANGES
index 7107085fd38..216c0b54d8a 100644
--- a/kronolith/docs/CHANGES
+++ b/kronolith/docs/CHANGES
@@ -36,6 +36,7 @@ v4.2.2
 [jan] Fix displayed CalDAV URLs for shared calendars in basic view too
       (piper@hrz.uni-marburg.de, Bug #12380).
 
+
 ------
 v4.2.1
 ------
diff --git a/kronolith/docs/CREDITS b/kronolith/docs/CREDITS
index d735e4660db..911b3d3d0a8 100644
--- a/kronolith/docs/CREDITS
+++ b/kronolith/docs/CREDITS
@@ -35,6 +35,7 @@ Chinese (Simplified)    Zhang Bo <boozhang@sdb.ac.cn>
 Chinese (Traditional)   David Chang <david@tmv.gov.tw>
 Croatian                Matej Vela <matej.vela@carnet.hr>
 Czech                   Pavel Chytil <pchytil@asp.ogi.edu>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Bill Edgington <horde@0x20.com>
                         Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
diff --git a/mnemo/docs/CREDITS b/mnemo/docs/CREDITS
index ca57de83df9..554e60fe63c 100644
--- a/mnemo/docs/CREDITS
+++ b/mnemo/docs/CREDITS
@@ -25,6 +25,7 @@ Chinese (Simplified)    Peter Wang <whw@oulink.net>
 Chinese (Traditional)   Chih-Wei Yeh <cwyeh@ccca.nctu.edu.tw>
 Croatian                Matej Vela <matej.vela@carnet.hr>
 Czech                   Pavel Chytil <pavel@chytil.tk>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>
diff --git a/nag/docs/CREDITS b/nag/docs/CREDITS
index f4b4ec22c5e..0d5d880b840 100644
--- a/nag/docs/CREDITS
+++ b/nag/docs/CREDITS
@@ -26,6 +26,7 @@ Chinese (Simplified)    Peter Wang <whw@oulink.net>
 Chinese (Traditional)   David Chang <david@tmv.gov.tw>
 Croatian                Matej Vela <matej.vela@carnet.hr>
 Czech                   Pavel Chytil <pchytil@asp.ogi.edu>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>
diff --git a/turba/docs/CREDITS b/turba/docs/CREDITS
index be5d1479063..beda41285b2 100644
--- a/turba/docs/CREDITS
+++ b/turba/docs/CREDITS
@@ -33,6 +33,7 @@ Czech                   Pavel Chytil <pchytil@asp.ogi.edu>
                         Jan Krivanek <honza@atack.cz>
                         Petra Kostinkova <kostinkova.petra@active24.cz>
                         Michal Foist <foist.michal@active24.cz>
+                        Michael Grafnetter <michael.grafnetter@outlook.com>
 Danish                  Martin List-Petersen <martin@list-petersen.dk>
                         Brian Truelsen <horde+i18n@briantruelsen.dk>
                         Niels Baggesen <nba@users.sourceforge.net>