diff --git a/main.go b/main.go
index f7851c4..2b6d6e9 100644
--- a/main.go
+++ b/main.go
@@ -13,6 +13,7 @@ var secureServer *nexproto.SecureProtocol
 
 func main() {
 	nexServer = nex.NewServer()
+	nexServer.SetFragmentSize(900)
 	nexServer.SetPrudpVersion(0)
 	nexServer.SetSignatureVersion(1)
 	nexServer.SetKerberosKeySize(16)