diff --git a/reactos/w32api/include/winspool.h b/reactos/w32api/include/winspool.h
index cc803ca2747..e18eeda88d8 100644
--- a/reactos/w32api/include/winspool.h
+++ b/reactos/w32api/include/winspool.h
@@ -587,7 +587,7 @@ BOOL WINAPI DeletePrintProcessorW(LPWSTR,LPWSTR,LPWSTR);
 BOOL WINAPI DeletePrintProvidorA(LPSTR,LPSTR,LPSTR);
 BOOL WINAPI DeletePrintProvidorW(LPWSTR,LPWSTR,LPWSTR);
 LONG WINAPI DocumentPropertiesA(HWND,HANDLE,LPSTR,PDEVMODEA,PDEVMODEA,DWORD);
-LONG WINAPI DocumentPropertiesW(HWND,HANDLE,LPWSTR,PDEVMODEA,PDEVMODEA,DWORD);
+LONG WINAPI DocumentPropertiesW(HWND,HANDLE,LPWSTR,PDEVMODEW,PDEVMODEW,DWORD);
 BOOL WINAPI EndDocPrinter(HANDLE);
 BOOL WINAPI EndPagePrinter(HANDLE);
 BOOL WINAPI EnumFormsA(HANDLE,DWORD,PBYTE,DWORD,PDWORD,PDWORD);