diff --git a/include/SFML/Network/Packet.hpp b/include/SFML/Network/Packet.hpp
index eacae8a1b..84763a318 100644
--- a/include/SFML/Network/Packet.hpp
+++ b/include/SFML/Network/Packet.hpp
@@ -181,6 +181,8 @@ public:
     Packet& operator >>(Uint16&       data);
     Packet& operator >>(Int32&        data);
     Packet& operator >>(Uint32&       data);
+    Packet& operator >>(Int64&        data);
+    Packet& operator >>(Uint64&       data);
     Packet& operator >>(float&        data);
     Packet& operator >>(double&       data);
     Packet& operator >>(char*         data);
@@ -200,6 +202,8 @@ public:
     Packet& operator <<(Uint16              data);
     Packet& operator <<(Int32               data);
     Packet& operator <<(Uint32              data);
+    Packet& operator <<(Int64               data);
+    Packet& operator <<(Uint64              data);
     Packet& operator <<(float               data);
     Packet& operator <<(double              data);
     Packet& operator <<(const char*         data);
diff --git a/src/SFML/Network/Packet.cpp b/src/SFML/Network/Packet.cpp
index ab4615ab8..35328f745 100644
--- a/src/SFML/Network/Packet.cpp
+++ b/src/SFML/Network/Packet.cpp
@@ -188,6 +188,52 @@ Packet& Packet::operator >>(Uint32& data)
 }
 
 
+////////////////////////////////////////////////////////////
+Packet& Packet::operator >>(Int64& data)
+{
+    if (checkSize(sizeof(data)))
+    {
+        // Since ntohll is not available everywhere, we have to convert
+        // to network byte order (big endian) manually
+        const Uint8* bytes = reinterpret_cast<const Uint8*>(&m_data[m_readPos]);
+        data = (static_cast<Int64>(bytes[0]) << 56) |
+               (static_cast<Int64>(bytes[1]) << 48) |
+               (static_cast<Int64>(bytes[2]) << 40) |
+               (static_cast<Int64>(bytes[3]) << 32) |
+               (static_cast<Int64>(bytes[4]) << 24) |
+               (static_cast<Int64>(bytes[5]) << 16) |
+               (static_cast<Int64>(bytes[6]) <<  8) |
+               (static_cast<Int64>(bytes[7])      );
+        m_readPos += sizeof(data);
+    }
+
+    return *this;
+}
+
+
+////////////////////////////////////////////////////////////
+Packet& Packet::operator >>(Uint64& data)
+{
+    if (checkSize(sizeof(data)))
+    {
+        // Since ntohll is not available everywhere, we have to convert
+        // to network byte order (big endian) manually
+        const Uint8* bytes = reinterpret_cast<const Uint8*>(&m_data[m_readPos]);
+        data = (static_cast<Uint64>(bytes[0]) << 56) |
+               (static_cast<Uint64>(bytes[1]) << 48) |
+               (static_cast<Uint64>(bytes[2]) << 40) |
+               (static_cast<Uint64>(bytes[3]) << 32) |
+               (static_cast<Uint64>(bytes[4]) << 24) |
+               (static_cast<Uint64>(bytes[5]) << 16) |
+               (static_cast<Uint64>(bytes[6]) <<  8) |
+               (static_cast<Uint64>(bytes[7])      );
+        m_readPos += sizeof(data);
+    }
+
+    return *this;
+}
+
+
 ////////////////////////////////////////////////////////////
 Packet& Packet::operator >>(float& data)
 {
@@ -385,6 +431,48 @@ Packet& Packet::operator <<(Uint32 data)
 }
 
 
+////////////////////////////////////////////////////////////
+Packet& Packet::operator <<(Int64 data)
+{
+    // Since htonll is not available everywhere, we have to convert
+    // to network byte order (big endian) manually
+    Uint8 toWrite[] =
+    {
+        (data >> 56) & 0xFF,
+        (data >> 48) & 0xFF,
+        (data >> 40) & 0xFF,
+        (data >> 32) & 0xFF,
+        (data >> 24) & 0xFF,
+        (data >> 16) & 0xFF,
+        (data >>  8) & 0xFF,
+        (data      ) & 0xFF
+    };
+    append(&toWrite, sizeof(toWrite));
+    return *this;
+}
+
+
+////////////////////////////////////////////////////////////
+Packet& Packet::operator <<(Uint64 data)
+{
+    // Since htonll is not available everywhere, we have to convert
+    // to network byte order (big endian) manually
+    Uint8 toWrite[] =
+    {
+        (data >> 56) & 0xFF,
+        (data >> 48) & 0xFF,
+        (data >> 40) & 0xFF,
+        (data >> 32) & 0xFF,
+        (data >> 24) & 0xFF,
+        (data >> 16) & 0xFF,
+        (data >>  8) & 0xFF,
+        (data      ) & 0xFF
+    };
+    append(&toWrite, sizeof(toWrite));
+    return *this;
+}
+
+
 ////////////////////////////////////////////////////////////
 Packet& Packet::operator <<(float data)
 {