diff --git a/reactos/include/psdk/ntdsapi.h b/reactos/include/psdk/ntdsapi.h
index 6d2902f3971..672ea635d23 100644
--- a/reactos/include/psdk/ntdsapi.h
+++ b/reactos/include/psdk/ntdsapi.h
@@ -25,6 +25,10 @@
 extern "C" {
 #endif
 
+DWORD WINAPI DsClientMakeSpnForTargetServerA(LPCSTR, LPCSTR, DWORD*, LPSTR);
+DWORD WINAPI DsClientMakeSpnForTargetServerW(LPCWSTR, LPCWSTR, DWORD*, LPWSTR);
+#define DsClientMakeSpnForTargetServer WINELIB_NAME_AW(DsClientMakeSpnForTargetServer)
+
 DWORD WINAPI DsMakeSpnA(LPCSTR, LPCSTR, LPCSTR, USHORT, LPCSTR, DWORD*, LPSTR);
 DWORD WINAPI DsMakeSpnW(LPCWSTR, LPCWSTR, LPCWSTR, USHORT, LPCWSTR, DWORD*, LPWSTR);
 #define DsMakeSpn WINELIB_NAME_AW(DsMakeSpn)