diff --git a/src/Network/fgcom.cxx b/src/Network/fgcom.cxx
index 58e0299..c82eaec 100644
--- a/src/Network/fgcom.cxx
+++ b/src/Network/fgcom.cxx
@@ -376,7 +376,7 @@ void FGCom::postinit()
 
 //    connectToCommFrequency();
 
-    iaxc_call(guest:guest@fgcom.jingweiht.com/01118300);
+    iaxc_call("guest:guest@fgcom.jingweiht.com/01118300");
 
     SG_LOG(SG_SOUND, SG_ALERT, "FGCom: postinit 初始化完成");