diff --git a/main.go b/main.go
index b8ebe04..9bc315d 100644
--- a/main.go
+++ b/main.go
@@ -180,6 +180,8 @@ type TICWriter interface {
 }
 
 func main() {
+	parseEnvironmentVariables()
+
 	var legacyMode = flag.Bool("legacy-mode", false, "Assume teleinformation in legacy mode")
 	var pushFrequency = flag.Bool("push-frequency", false, "Also fetch data about the grid frequency")
 	flag.Parse()