diff --git a/gui/webdisplay/src/TWebWindowWSHandler.hxx b/gui/webdisplay/src/TWebWindowWSHandler.hxx
index 28f08534f934ed43aca79ef1d834db50d57b87b9..e31b955111b8c27601ac9dbf88bd446e7e6066a7 100644
--- a/gui/webdisplay/src/TWebWindowWSHandler.hxx
+++ b/gui/webdisplay/src/TWebWindowWSHandler.hxx
@@ -31,7 +31,7 @@ public:
 
    /// constructor
    TWebWindowWSHandler(TWebWindow &wind, const char *name)
-      : THttpWSHandler(name, "TWebWindow websockets handler"), fWindow(wind)
+      : THttpWSHandler(name, "TWebWindow websockets handler", kFALSE), fWindow(wind)
    {
    }