diff --git a/tdnet/td/net/Socks5.cpp b/tdnet/td/net/Socks5.cpp
index 8dba5f40..23e5c6f7 100644
--- a/tdnet/td/net/Socks5.cpp
+++ b/tdnet/td/net/Socks5.cpp
@@ -110,7 +110,7 @@ void Socks5::send_ip_address() {
     request += static_cast<char>((ipv4 >> 24) & 255);
   } else {
     request += '\x04';
-    request += ip_address_.get_ipv6().str();
+    request += ip_address_.get_ipv6();
   }
   auto port = ip_address_.get_port();
   request += static_cast<char>((port >> 8) & 255);
diff --git a/tdutils/td/utils/port/IPAddress.cpp b/tdutils/td/utils/port/IPAddress.cpp
index 06d946ac..8d3a4f57 100644
--- a/tdutils/td/utils/port/IPAddress.cpp
+++ b/tdutils/td/utils/port/IPAddress.cpp
@@ -267,11 +267,11 @@ uint32 IPAddress::get_ipv4() const {
   return htonl(ipv4_addr_.sin_addr.s_addr);
 }
 
-Slice IPAddress::get_ipv6() const {
+string IPAddress::get_ipv6() const {
   static_assert(sizeof(ipv6_addr_.sin6_addr) == 16, "ipv6 size == 16");
   CHECK(is_valid());
   CHECK(!is_ipv4());
-  return Slice(ipv6_addr_.sin6_addr.s6_addr, 16);
+  return Slice(ipv6_addr_.sin6_addr.s6_addr, 16).str();
 }
 
 IPAddress IPAddress::get_any_addr() const {
diff --git a/tdutils/td/utils/port/IPAddress.h b/tdutils/td/utils/port/IPAddress.h
index 4d6b9bce..82893909 100644
--- a/tdutils/td/utils/port/IPAddress.h
+++ b/tdutils/td/utils/port/IPAddress.h
@@ -39,7 +39,7 @@ class IPAddress {
   void set_port(int port);
 
   uint32 get_ipv4() const;
-  Slice get_ipv6() const;
+  string get_ipv6() const;
   Slice get_ip_str() const;
 
   IPAddress get_any_addr() const;