Annotate with allocation size attribute.
diff --git a/include/shlobj.h b/include/shlobj.h
index 3e6e7a5..284a020 100644
--- a/include/shlobj.h
+++ b/include/shlobj.h
@@ -40,7 +40,7 @@
 #endif
 
 UINT         WINAPI SHAddFromPropSheetExtArray(HPSXA,LPFNADDPROPSHEETPAGE,LPARAM);
-LPVOID       WINAPI SHAlloc(ULONG);
+LPVOID       WINAPI SHAlloc(ULONG) __WINE_ALLOC_SIZE(1);
 HRESULT      WINAPI SHCoCreateInstance(LPCWSTR,const CLSID*,IUnknown*,REFIID,LPVOID*);
 HPSXA        WINAPI SHCreatePropSheetExtArray(HKEY,LPCWSTR,UINT);
 HPSXA        WINAPI SHCreatePropSheetExtArrayEx(HKEY,LPCWSTR,UINT,IDataObject*);