include: Fix a typo in ddraw.h.
diff --git a/include/ddraw.h b/include/ddraw.h
index f7d1d37..da01512 100644
--- a/include/ddraw.h
+++ b/include/ddraw.h
@@ -1674,7 +1674,7 @@
#define IDirectDraw4_GetAvailableVidMem(p,a,b,c) (p)->lpVtbl->GetAvailableVidMem(p,a,b,c)
/*** IDirectDraw4 methods ***/
#define IDirectDraw4_GetSurfaceFromDC(p,a,b) (p)->lpVtbl->GetSurfaceFromDC(p,a,b)
-#define IDirectDraw4_RestoreAllSurfaces(pc) (p)->lpVtbl->RestoreAllSurfaces(p)
+#define IDirectDraw4_RestoreAllSurfaces(p) (p)->lpVtbl->RestoreAllSurfaces(p)
#define IDirectDraw4_TestCooperativeLevel(p) (p)->lpVtbl->TestCooperativeLevel(p)
#define IDirectDraw4_GetDeviceIdentifier(p,a,b) (p)->lpVtbl->GetDeviceIdentifier(p,a,b)
#else