diff --git a/internal/pkg/util/envutils/envutils.go b/internal/pkg/util/envutils/envutils.go
index 8ef7149..d31150e 100644
--- a/internal/pkg/util/envutils/envutils.go
+++ b/internal/pkg/util/envutils/envutils.go
@@ -79,6 +79,7 @@
 
 	// vgc environment variables
 
+	PrometheusPort            = "PROMETHEUS_PORT"
 	DeviceListRefreshInterval = "DEVICE_LIST_REFRESH_INTERVAL" // in seconds
 	CPUProfile                = "CPU_PROFILE"
 	MemProfile                = "MEM_PROFILE"