diff --git a/main.go b/main.go
index 65474f1..c06d759 100644
--- a/main.go
+++ b/main.go
@@ -39,7 +39,7 @@ func main()  {
 	})
 
 	http.HandleFunc("/json", func(writer http.ResponseWriter, request *http.Request) {
-		var data map[string]interface{}
+		data := make(map[string]interface{})
 
 		data["lat"] = lastData["lat"]
 		data["lon"] = lastData["lon"]