diff --git a/main.go b/main.go
index 006897c..fc7799f 100644
--- a/main.go
+++ b/main.go
@@ -288,7 +288,7 @@ func main() {
 		Host:        server,
 		User:        user,
 		DialTimeout: timeout,
-		Resource:    "go-sendxmpp" + getShortID(),
+		Resource:    "go-sendxmpp." + getShortID(),
 		Password:    password,
 		// NoTLS doesn't mean that no TLS is used at all but that instead
 		// of using an encrypted connection to the server (direct TLS)