diff --git a/type/__prometheus_yoctotemp_exporter/gencode-remote b/type/__prometheus_yoctotemp_exporter/gencode-remote
index 6c179c8..adb94e5 100755
--- a/type/__prometheus_yoctotemp_exporter/gencode-remote
+++ b/type/__prometheus_yoctotemp_exporter/gencode-remote
@@ -4,17 +4,19 @@ VCS_TAG=$(cat "$__object/parameter/version")
 VCS_URL="https://code.recycled.cloud/RecycledCloud/prometheus-yoctotemp-exporter/raw/tag/$VCS_TAG/prometheus-yoctotemp-exporter"
 
 cat << EOF
-cd /opt/prometheus-yoctotemp-exporter
-
-# Fetch sources.
-curl "$VCS_URL" -o prometheus-yoctotemp-exporter
-
-# Install virtualenv and dependencies.
-virtualenv -p python3 venv
-. venv/bin/activate
-pip install prometheus_client
-pip install yoctopuce
-
-# Start service
-service prometheus-yoctotemp-exporter start
+if [ ! -d /opt/prometheus-yoctotemp-exporter ]; then
+	cd /opt/prometheus-yoctotemp-exporter
+	
+	# Fetch sources.
+	curl "$VCS_URL" -o prometheus-yoctotemp-exporter
+	
+	# Install virtualenv and dependencies.
+	virtualenv -p python3 venv
+	. venv/bin/activate
+	pip install prometheus_client
+	pip install yoctopuce
+	
+	# Start service
+	service prometheus-yoctotemp-exporter start
+fi
 EOF