diff --git a/issue_template.md b/issue_template.md
index 87b88d4..9e24a36 100644
--- a/issue_template.md
+++ b/issue_template.md
@@ -31,7 +31,7 @@ about: When creating a bug report, please use the following template to provide
 
 - *If you performed a command from the CLI, the command itself is enough. For example:*
     ```sh
-    sudo yunohost app install REPLACEBYYOURAPP
+    sudo yunohost app install domoticz_ynh
     ```
 - *If you used the webadmin, please perform the equivalent command from the CLI first.*
 - *If the error occurs in your browser, explain what you did:*
diff --git a/scripts/install b/scripts/install
index aae380f..436d2ea 100755
--- a/scripts/install
+++ b/scripts/install
@@ -120,7 +120,10 @@ ynh_script_progression --message="Configuring system user..." --weight=1
 # Create a system user
 ynh_system_user_create --username=$app
 #allow user to access USB / serial port to communicate with tools (RFXtrx, Z-wave dongle, etc.) & i2c bus
-usermod -a -G dialout i2c gpio $app
+usermod -a -G dialout $app
+usermod -a -G i2c $app
+usermod -a -G gpio $app
+
 
 #allow app user to restart service on startup
 cp ../conf/sudoer ../conf/$app.conf
diff --git a/scripts/restore b/scripts/restore
index 3f94d66..29d87a5 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -92,7 +92,9 @@ ynh_restore_file --origin_path="/etc/sudoers.d/$app"
 #Both folder and database file must be own by app user for domoticz to work and allow internal upgrade
 chown -R $app: $final_path
 #allow user to access USB / serial port to communicate with tools (RFXtrx, Z-wave dongle, etc.) & i2c bus
-usermod -a -G dialout i2c gpio $app
+usermod -a -G dialout $app
+usermod -a -G i2c $app
+usermod -a -G gpio $app
 
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index bc938ee..ae3112a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -175,7 +175,9 @@ ynh_script_progression --message="Making sure dedicated system user exists..."
 # Create a dedicated user (if not existing)
 ynh_system_user_create --username=$app
 #allow user to access USB / serial port to communicate with tools (RFXtrx, Z-wave dongle, etc.) & i2c bus
-usermod -a -G dialout i2c gpio $app
+usermod -a -G dialout $app
+usermod -a -G i2c $app
+usermod -a -G gpio $app
 
 #allow app user to restart service on startup
 cp ../conf/sudoer ../conf/$app.conf