diff --git a/main.go b/main.go
index a038540..b4870b4 100644
--- a/main.go
+++ b/main.go
@@ -74,7 +74,7 @@ func main() {
 
 	for range time.Tick(cfg.Interval) {
 		var (
-			body   *bytes.Buffer
+			body   io.ReadWriter
 			result *checkResult
 		)