diff --git a/scripts/install b/scripts/install
index eee32e4..3803663 100755
--- a/scripts/install
+++ b/scripts/install
@@ -69,8 +69,8 @@ ynh_use_logrotate
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
 # Start a systemd service
-ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log"
-ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log" --line_match="Loki started"
+ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log" --line_match="server listening on addresses"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/restore b/scripts/restore
index ab78921..5ea9c2e 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -48,8 +48,8 @@ ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log"
-ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log" --line_match="Loki started"
+ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log" --line_match="server listening on addresses"
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/upgrade b/scripts/upgrade
index c13f548..32d593d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -80,8 +80,8 @@ ynh_use_logrotate --non-append
 #=================================================
 ynh_script_progression --message="Starting a systemd service..." --weight=1
 
-ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log"
-ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log"
+ynh_systemd_action --service_name="$app" --action="start" --log_path="/var/log/$app/loki.log" --line_match="Loki started"
+ynh_systemd_action --service_name="$app-promtail" --action="start" --log_path="/var/log/$app/promtail.log" --line_match="server listening on addresses"
 
 #=================================================
 # END OF SCRIPT