diff --git a/scripts/install b/scripts/install
index 96846ab..738dbf5 100644
--- a/scripts/install
+++ b/scripts/install
@@ -30,10 +30,10 @@ sudo apt-get install transmission-daemon -y -qq
 
 # Make directories and set rights
 sudo mkdir -p /home/yunohost.transmission/{progress,completed}
-sudo chgrp debian-transmission /home/yunohost.transmission/{progress,completed}
-sudo chmod 755 -R /home/yunohost.transmission
-sudo chmod 770 -R /home/yunohost.transmission/{progress,completed}
-sudo chown -R www-data /home/yunohost.transmission/completed
+sudo chown -R debian-transmission:debian-transmission /home/yunohost.transmission/
+sudo chown -R debian-transmission:www-data /home/yunohost.transmission/completed
+sudo find /home/yunohost.transmission/ -type f | while read LINE; do sudo chmod 640 "$LINE" ; done
+sudo find /home/yunohost.transmission/ -type d | while read LINE; do sudo chmod 750 "$LINE" ; done
 
 # Configure Transmission and reload
 sed -i "s@PATHTOCHANGE@$path@g" ../conf/settings.json
diff --git a/scripts/upgrade b/scripts/upgrade
index 7e12052..1219a22 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -15,9 +15,10 @@ sudo apt-get install transmission-daemon -y -qq
 
 # Make directories and set rights
 sudo mkdir -p /home/yunohost.transmission/{progress,completed}
-sudo chgrp debian-transmission /home/yunohost.transmission/{progress,completed}
-sudo chmod 755 -R /home/yunohost.transmission
-sudo chmod 770 -R /home/yunohost.transmission/{progress,completed}
+sudo chown -R debian-transmission:debian-transmission /home/yunohost.transmission/
+sudo chown -R debian-transmission:www-data /home/yunohost.transmission/completed
+sudo find /home/yunohost.transmission/ -type f | while read LINE; do sudo chmod 640 "$LINE" ; done
+sudo find /home/yunohost.transmission/ -type d | while read LINE; do sudo chmod 750 "$LINE" ; done
 
 # Configure Transmission and reload
 sed -i "s@PATHTOCHANGE@$path@g" ../conf/settings.json