diff --git a/include/gdi.h b/include/gdi.h
index 58052f3..38eaf36 100644
--- a/include/gdi.h
+++ b/include/gdi.h
@@ -162,7 +162,7 @@
     INT      (*pEndDoc)(PHYSDEV);
     INT      (*pEndPage)(PHYSDEV);
     BOOL     (*pEndPath)(PHYSDEV);
-    BOOL     (*pEnumDeviceFonts)(HDC,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
+    BOOL     (*pEnumDeviceFonts)(PHYSDEV,LPLOGFONTW,DEVICEFONTENUMPROC,LPARAM);
     INT      (*pExcludeClipRect)(PHYSDEV,INT,INT,INT,INT);
     INT      (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
     INT      (*pExtEscape)(PHYSDEV,INT,INT,LPCVOID,INT,LPVOID);
diff --git a/include/x11drv.h b/include/x11drv.h
index 4331815..83037b3 100644
--- a/include/x11drv.h
+++ b/include/x11drv.h
@@ -108,7 +108,7 @@
 extern BOOL X11DRV_BitBlt( X11DRV_PDEVICE *physDevDst, INT xDst, INT yDst,
                              INT width, INT height, X11DRV_PDEVICE *physDevSrc,
                              INT xSrc, INT ySrc, DWORD rop );
-extern BOOL X11DRV_EnumDeviceFonts( HDC hdc, LPLOGFONTW plf,
+extern BOOL X11DRV_EnumDeviceFonts( X11DRV_PDEVICE *physDev, LPLOGFONTW plf,
 				    DEVICEFONTENUMPROC dfeproc, LPARAM lp );
 extern BOOL X11DRV_GetCharWidth( X11DRV_PDEVICE *physDev, UINT firstChar,
                                    UINT lastChar, LPINT buffer );