diff --git a/src/internet/test/tcp-general-test.cc b/src/internet/test/tcp-general-test.cc
index f731e98a1..845c0d3c5 100644
--- a/src/internet/test/tcp-general-test.cc
+++ b/src/internet/test/tcp-general-test.cc
@@ -1028,7 +1028,7 @@ TcpSocketSmallAcks::SendEmptyPacket (uint8_t flags)
    * if both options are set. Once the packet got to layer three, only
    * the corresponding tags will be read.
    */
-  if (IsManualIpTos ())
+  if (GetIpTos ())
     {
       SocketIpTosTag ipTosTag;
       ipTosTag.SetTos (GetIpTos ());
diff --git a/src/network/model/socket.cc b/src/network/model/socket.cc
index d228c80f7..69a05e8a4 100644
--- a/src/network/model/socket.cc
+++ b/src/network/model/socket.cc
@@ -43,8 +43,7 @@ Socket::GetTypeId (void)
 }
 
 Socket::Socket (void)
-  : m_manualIpTos (false),
-    m_manualIpTtl (false),
+  : m_manualIpTtl (false),
     m_ipRecvTos (false),
     m_ipRecvTtl (false),
     m_manualIpv6Tclass (false),
@@ -368,12 +367,6 @@ bool Socket::IsRecvPktInfo () const
   return m_recvPktInfo;
 }
 
-bool
-Socket::IsManualIpTos (void) const
-{
-  return m_manualIpTos;
-}
-
 bool
 Socket::IsManualIpv6Tclass (void) const
 {
@@ -451,7 +444,6 @@ Socket::SetIpTos (uint8_t tos)
 {
   Address address;
   GetSockName (address);
-  m_manualIpTos = true;
   if (GetSocketType () == NS3_SOCK_STREAM)
     {
       // preserve the least two significant bits of the current TOS
diff --git a/src/network/model/socket.h b/src/network/model/socket.h
index c73e840f9..c5e478d47 100644
--- a/src/network/model/socket.h
+++ b/src/network/model/socket.h
@@ -1049,13 +1049,6 @@ protected:
   // inherited function, no doc necessary
   virtual void DoDispose (void);
 
-  /**
-   * \brief Checks if the socket has a specific IPv4 ToS set
-   *
-   * \returns true if the socket has a IPv4 ToS set, false otherwise.
-   */
-  bool IsManualIpTos (void) const;
-
   /**
    * \brief Checks if the socket has a specific IPv6 Tclass set
    *
@@ -1095,7 +1088,6 @@ private:
   uint8_t m_priority; //!< the socket priority
 
   //IPv4 options
-  bool m_manualIpTos; //!< socket has IPv4 TOS set
   bool m_manualIpTtl; //!< socket has IPv4 TTL set
   bool m_ipRecvTos;   //!< socket forwards IPv4 TOS tag to L4
   bool m_ipRecvTtl;   //!< socket forwards IPv4 TTL tag to L4