diff --git a/scripts/install b/scripts/install
index c36b120..c9e824a 100755
--- a/scripts/install
+++ b/scripts/install
@@ -306,6 +306,7 @@ ynh_multimedia_addaccess $app
 
 # Fix app ownerships & permissions
 chown -R $app: "$final_path" "$datadir"
+chmod -R o-rwx "$final_path"
 find $final_path/ -type f -print0 | xargs -0 chmod 0644
 find $final_path/ -type d -print0 | xargs -0 chmod 0755
 find $datadir/ -type f -print0 | xargs -0 chmod 0640
diff --git a/scripts/restore b/scripts/restore
index 44f8384..72a5e47 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -134,6 +134,7 @@ mkdir -p "$datadir"
 
 # Fix app ownerships & permissions
 chown -R $app: "$final_path" "$datadir"
+chmod -R o-rwx "$final_path"
 chmod 640 "$final_path/config/config.php"
 chmod 755 /home/yunohost.app
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 8968143..a53ffce 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -425,6 +425,7 @@ exec_occ background:cron
 
 # Fix app ownerships & permissions
 chown -R $app: "$final_path" "$datadir"
+chmod -R o-rwx "$final_path"
 find $final_path/ -type f -print0 | xargs -0 chmod 0644
 find $final_path/ -type d -print0 | xargs -0 chmod 0755
 find $datadir/ -type f -print0 | xargs -0 chmod 0640