diff --git a/sdk/include/reactos/shlwapi_undoc.h b/sdk/include/reactos/shlwapi_undoc.h
index a56ed24ed9d..f2b48278973 100644
--- a/sdk/include/reactos/shlwapi_undoc.h
+++ b/sdk/include/reactos/shlwapi_undoc.h
@@ -118,6 +118,9 @@ HRESULT WINAPI IUnknown_OnFocusChangeIS(LPUNKNOWN lpUnknown, LPUNKNOWN pFocusObj
 DWORD WINAPI SHAnsiToUnicode(LPCSTR lpSrcStr, LPWSTR lpDstStr, INT iLen);
 INT WINAPI SHUnicodeToAnsi(LPCWSTR lpSrcStr, LPSTR lpDstStr, INT iLen);
 
+DWORD WINAPI SHAnsiToUnicodeCP(DWORD dwCp, LPCSTR lpSrcStr, LPWSTR lpDstStr, int iLen);
+DWORD WINAPI SHUnicodeToAnsiCP(UINT CodePage, LPCWSTR lpSrcStr, LPSTR lpDstStr, int dstlen);
+
 PVOID WINAPI SHLockSharedEx(HANDLE hData, DWORD dwProcessId, BOOL bWriteAccess);
 
 int