diff --git a/server/netwrapper.py b/server/netwrapper.py
index 9234990..4f7f514 100644
--- a/server/netwrapper.py
+++ b/server/netwrapper.py
@@ -92,7 +92,7 @@ class NetWrapper:
     def keyExchange(self) -> None:
         dh = pyDH.DiffieHellman()
         mypubkey = self.ecryptRSAMessage(str(dh.gen_public_key()))
-        header, headersignature = self.signRSAHeader("DH")
+        header, headersignature = self.signRSAHeader("DH",{})
         jsonmsg = json.dumps(
             {'header': b64encode(header).decode('UTF-8'), 'headersignature': b64encode(headersignature).decode('UTF-8'),
              'message': mypubkey}).encode('UTF-8')