diff --git a/net-im/tg_owt/Makefile b/net-im/tg_owt/Makefile
index 2db259476edd..fb1bc2e21067 100644
--- a/net-im/tg_owt/Makefile
+++ b/net-im/tg_owt/Makefile
@@ -2,7 +2,7 @@
 
 PORTNAME=	tg_owt
 PORTVERSION=	0.0.20211021
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	net-im
 
 MAINTAINER=	glebius@FreeBSD.org
diff --git a/net-im/tg_owt/files/patch-src_third__party_abseil-cpp_absl_meta_type__traits.h b/net-im/tg_owt/files/patch-src_third__party_abseil-cpp_absl_meta_type__traits.h
new file mode 100644
index 000000000000..eeb40597b6c8
--- /dev/null
+++ b/net-im/tg_owt/files/patch-src_third__party_abseil-cpp_absl_meta_type__traits.h
@@ -0,0 +1,30 @@
+--- src/third_party/abseil-cpp/absl/meta/type_traits.h.orig	2021-10-21 06:15:41 UTC
++++ src/third_party/abseil-cpp/absl/meta/type_traits.h
+@@ -616,19 +616,14 @@ using common_type_t = typename std::common_type<T...>:
+ template <typename T>
+ using underlying_type_t = typename std::underlying_type<T>::type;
+ 
+-#if _MSVC_LANG > 201703L
+-template <typename T>
+-struct result_of_helper;
+-template <typename F, typename ...Args>
+-struct result_of_helper<F(Args...)> {
+-  using type = std::invoke_result_t<F, Args...>;
+-};
+-template <typename T>
+-using result_of_t = typename result_of_helper<T>::type;
+-#else   // C++20
+-template <typename T>
+-using result_of_t = typename std::result_of<T>::type;
+-#endif  // C++20
++#if __cplusplus >= 201703L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
++// std::result_of is deprecated (C++17) or removed (C++20)
++template<typename> struct result_of;
++template<typename F, typename... Args>
++struct result_of<F(Args...)> : std::invoke_result<F, Args...> {};
++#else
++template<typename F> using result_of = std::result_of<F>;
++#endif
+ 
+ namespace type_traits_internal {
+ // In MSVC we can't probe std::hash or stdext::hash because it triggers a