diff --git a/include/libtorrent/aux_/session_impl.hpp b/include/libtorrent/aux_/session_impl.hpp
index 5c5dddbbb..7c9f637e3 100644
--- a/include/libtorrent/aux_/session_impl.hpp
+++ b/include/libtorrent/aux_/session_impl.hpp
@@ -710,8 +710,6 @@ namespace aux {
 			bool on_dht_request(string_view query
 				, dht::msg const& request, entry& response) override;
 
-			void set_external_address(address const& ip
-				, ip_source_t source_type, address const& source) override;
 			void set_external_address(tcp::endpoint const& local_endpoint
 				, address const& ip
 				, ip_source_t source_type, address const& source) override;
diff --git a/include/libtorrent/aux_/session_interface.hpp b/include/libtorrent/aux_/session_interface.hpp
index 3a684467f..2ad95eb38 100644
--- a/include/libtorrent/aux_/session_interface.hpp
+++ b/include/libtorrent/aux_/session_interface.hpp
@@ -147,8 +147,6 @@ namespace aux {
 		static constexpr ip_source_t source_tracker = 3_bit;
 		static constexpr ip_source_t source_router = 4_bit;
 
-		virtual void set_external_address(address const& ip
-			, ip_source_t source_type, address const& source) = 0;
 		virtual void set_external_address(tcp::endpoint const& local_endpoint
 			, address const& ip
 			, ip_source_t source_type, address const& source) = 0;
diff --git a/src/session_impl.cpp b/src/session_impl.cpp
index 1773a96ff..5c6807dc5 100644
--- a/src/session_impl.cpp
+++ b/src/session_impl.cpp
@@ -6904,21 +6904,6 @@ namespace aux {
 		return false;
 	}
 
-	void session_impl::set_external_address(address const& ip
-		, ip_source_t const source_type, address const& source)
-	{
-		// for now, just pick the first socket with a matching address family
-		// TODO: remove this function once all callers are updated to specify a listen socket
-		for (auto& i : m_listen_sockets)
-		{
-			if (is_v4(i->local_endpoint) != ip.is_v4())
-				continue;
-
-			set_external_address(i, ip, source_type, source);
-			break;
-		}
-	}
-
 	void session_impl::set_external_address(
 		tcp::endpoint const& local_endpoint, address const& ip
 		, ip_source_t const source_type, address const& source)