diff --git a/reactos/include/psdk/lmaccess.h b/reactos/include/psdk/lmaccess.h
index 877bac2f326..c27e8ea93ea 100644
--- a/reactos/include/psdk/lmaccess.h
+++ b/reactos/include/psdk/lmaccess.h
@@ -594,7 +594,7 @@ NET_API_STATUS WINAPI NetLocalGroupSetInfo(LPCWSTR,LPCWSTR,DWORD,PBYTE,PDWORD);
 NET_API_STATUS WINAPI NetLocalGroupDel(LPCWSTR,LPCWSTR);
 NET_API_STATUS WINAPI NetLocalGroupDelMember(LPCWSTR,LPCWSTR,PSID);
 NET_API_STATUS WINAPI NetLocalGroupGetMembers(LPCWSTR,LPCWSTR,DWORD,PBYTE*,DWORD,
-PDWORD,PDWORD,PDWORD);
+PDWORD,PDWORD,PDWORD_PTR);
 NET_API_STATUS WINAPI NetLocalGroupSetMembers(LPCWSTR,LPCWSTR,DWORD,PBYTE,DWORD);
 NET_API_STATUS WINAPI NetLocalGroupAddMembers(LPCWSTR,LPCWSTR,DWORD,PBYTE,DWORD);
 NET_API_STATUS WINAPI NetLocalGroupDelMembers(LPCWSTR,LPCWSTR,DWORD,PBYTE,DWORD);