diff --git a/mingw-w64-headers/include/mshtmhst.h b/mingw-w64-headers/include/mshtmhst.h
index be9157d..0e217d3 100644
--- a/mingw-w64-headers/include/mshtmhst.h
+++ b/mingw-w64-headers/include/mshtmhst.h
@@ -1,4 +1,4 @@
-/*** Autogenerated by WIDL 6.0-rc1 from include/mshtmhst.idl - Do not edit ***/
+/*** Autogenerated by WIDL 5.19 from mshtmhst.idl - Do not edit ***/
 
 #ifdef _WIN32
 #ifndef __REQUIRED_RPCNDR_H_VERSION__
@@ -164,7 +164,7 @@
 STDAPI RunHTMLApplication (HINSTANCE hinst, HINSTANCE hPrevInst, LPSTR szCmdLine, int nCmdShow);
 #endif
 STDAPI CreateHTMLPropertyPage (IMoniker *pmk, IPropertyPage **ppPP);
-STDAPI EarlyStartDisplaySystem ();
+STDAPI EarlyStartDisplaySystem (void);
 STDAPI IERegisterXMLNS (LPCWSTR lpszURI, GUID clsid, BOOL fMachine);
 STDAPI IEIsXMLNSRegistered (LPCWSTR lpszURI, GUID *pCLSID);
 STDAPI GetColorValueFromString (LPCWSTR lpszColor, BOOL fStrictCSS1, BOOL fIsStandardsCSS, COLORREF *pColor);