diff --git a/core/plug-in/sipctrl/SipCtrlInterface.cpp b/core/plug-in/sipctrl/SipCtrlInterface.cpp
index 482e3361..50941934 100644
--- a/core/plug-in/sipctrl/SipCtrlInterface.cpp
+++ b/core/plug-in/sipctrl/SipCtrlInterface.cpp
@@ -45,9 +45,6 @@
 
 #include <assert.h>
 
-#include <stack>
-using std::stack;
-
 #ifndef _STANDALONE
 
 #include "AmApi.h"