diff --git a/main.go b/main.go
index 460bc93..4b48e70 100755
--- a/main.go
+++ b/main.go
@@ -32,7 +32,7 @@ func main() {
 	fail := flag.Bool("fail", false, "fail connections forever")
 	block := flag.Int("block", 0, "seconds to block connections")
 	status := flag.Int("status", http.StatusOK, "status to always return")
-	body := flag.String("body", "", "body to always return")
+	body := flag.String("body", envOrDefault("BODY", ""), "body to always return")
 	flag.Parse()
 
 	// start server