diff --git a/include/activdbg.idl b/include/activdbg.idl
index f3cdff1e81a..e10066c1f26 100644
--- a/include/activdbg.idl
+++ b/include/activdbg.idl
@@ -368,6 +368,7 @@ interface IDebugApplication32 : IRemoteDebugApplication
             [out] APPBREAKFLAGS *pabf,
             [out] IRemoteDebugApplicationThread **pprdatSteppingThread);
 
+    cpp_quote("#undef GetCurrentThread")
     HRESULT GetCurrentThread(
             [out] IDebugApplicationThread **pat);