diff --git a/connection/SMPPConnection.st b/connection/SMPPConnection.st
index 05564c5..3271409 100644
--- a/connection/SMPPConnection.st
+++ b/connection/SMPPConnection.st
@@ -104,7 +104,7 @@ Osmo.OsmoStreamSocketBase subclass: SMPPConnection [
                                 sequenceNumber: aMessage header sequenceNumber;
                                 yourself);
                     body: #[].
-        self send: msg
+        writeQueue nextPut: msg toMessage asByteArray
     ]
 
     receviedResponse: aMessage [