diff --git a/scripts/backup b/scripts/backup
index b19e068..3ac5f94 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -49,7 +49,13 @@ mautrix_bridge_db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_p
 # SET CONSTANTS
 #=================================================
 
+botname_synapse_db_user="@$botname:$server_name"
+synapse_db_name="matrix_$synapse_instance"
+mautrix_bridge_user=$app
 mautrix_bridge_db_name=$app
+mautrix_bridge_db_user=$app
+upstream_version=$(ynh_app_upstream_version)
+log_filename="/var/log/$app/$app.log"
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
diff --git a/scripts/install b/scripts/install
index c5e7ac7..2ffdcf9 100755
--- a/scripts/install
+++ b/scripts/install
@@ -54,10 +54,13 @@ synapse_db_user="matrix_$synapse_instance"
 #=================================================
 
 botname_synapse_db_user="@$botname:$server_name"
+synapse_db_name="matrix_$synapse_instance"
 mautrix_bridge_user=$app
 mautrix_bridge_db_name=$app
 mautrix_bridge_db_user=$app
 upstream_version=$(ynh_app_upstream_version)
+log_filename="/var/log/$app/$app.log"
+
 
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
diff --git a/scripts/remove b/scripts/remove
index f5ff8c0..d7d17b9 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -38,11 +38,14 @@ mautrix_bridge_db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_p
 # SET CONSTANTS
 #=================================================
 
-synapse_db_name="matrix_$synapse_instance"
 botname_synapse_db_user="@$botname:$server_name"
+synapse_db_name="matrix_$synapse_instance"
 mautrix_bridge_user=$app
 mautrix_bridge_db_name=$app
 mautrix_bridge_db_user=$app
+upstream_version=$(ynh_app_upstream_version)
+log_filename="/var/log/$app/$app.log"
+
 
 #=================================================
 # STANDARD REMOVE
diff --git a/scripts/restore b/scripts/restore
index 248564e..4b87385 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -42,10 +42,13 @@ mautrix_bridge_db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_p
 # SET CONSTANTS
 #=================================================
 
+botname_synapse_db_user="@$botname:$server_name"
 synapse_db_name="matrix_$synapse_instance"
 mautrix_bridge_user=$app
 mautrix_bridge_db_name=$app
 mautrix_bridge_db_user=$app
+upstream_version=$(ynh_app_upstream_version)
+log_filename="/var/log/$app/$app.log"
 
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 2c5d6db..51b3692 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -38,11 +38,14 @@ mautrix_bridge_db_pwd=$(ynh_app_setting_get --app=$app --key=mautrix_bridge_db_p
 # SET CONSTANTS
 #=================================================
 
-log_filename="/var/log/$app/$app.log"
+botname_synapse_db_user="@$botname:$server_name"
 synapse_db_name="matrix_$synapse_instance"
 mautrix_bridge_user=$app
 mautrix_bridge_db_name=$app
 mautrix_bridge_db_user=$app
+upstream_version=$(ynh_app_upstream_version)
+log_filename="/var/log/$app/$app.log"
+
 #=================================================
 # CHECK VERSION
 #=================================================