diff --git a/xbmc/interfaces/legacy/Window.cpp b/xbmc/interfaces/legacy/Window.cpp
index aae36312432b5..9367782ce0384 100644
--- a/xbmc/interfaces/legacy/Window.cpp
+++ b/xbmc/interfaces/legacy/Window.cpp
@@ -37,6 +37,8 @@ namespace XBMCAddon
 {
   namespace xbmcgui
   {
+    XbmcThreads::ThreadLocal<ref> InterceptorBase::upcallTls;
+
     /**
      * Used in add/remove control. It only locks if it's given a 
      * non-NULL CCriticalSection. It's given a NULL CCriticalSection
diff --git a/xbmc/interfaces/legacy/WindowInterceptor.h b/xbmc/interfaces/legacy/WindowInterceptor.h
index 636136ae1d637..263de363aa9bd 100644
--- a/xbmc/interfaces/legacy/WindowInterceptor.h
+++ b/xbmc/interfaces/legacy/WindowInterceptor.h
@@ -43,7 +43,8 @@ namespace XBMCAddon
     {
     protected:
       AddonClass::Ref<Window> window;
-      XbmcThreads::ThreadLocal<ref> upcallTls;
+      // This instance is in Window.cpp
+      static XbmcThreads::ThreadLocal<ref> upcallTls;
 
       InterceptorBase() : window(NULL) { upcallTls.set(NULL); }