diff --git a/include/winspool.h b/include/winspool.h
index 9304bc2..cc414bf 100644
--- a/include/winspool.h
+++ b/include/winspool.h
@@ -274,7 +274,7 @@
 BOOL WINAPI PrinterProperties(HWND hWnd, HANDLE hPrinter);
 
 #ifdef __cplusplus
-} // extern "C"
+} /* extern "C" */
 #endif
 
 #endif  /* __WINE_WINSPOOL_H */