diff --git a/proxy.go b/proxy.go
index 55daeae..9478bb9 100644
--- a/proxy.go
+++ b/proxy.go
@@ -133,7 +133,7 @@ func main() {
 }
 
 func (s *ShellyStatus) Fetch() {
-	resp, err := http.Get(fmt.Sprintf("http://%d:%d/status", shellyHost, *shellyPort))
+	resp, err := http.Get(fmt.Sprintf("http://%s:%d/status", *shellyHost, *shellyPort))
 	if err != nil {
 		log.Fatalf("ShellyStatus.Fetch : http.Get (%s)", err)
 	}