diff --git a/Builds/VisualStudio2013/RippleD.vcxproj b/Builds/VisualStudio2013/RippleD.vcxproj
index f42c446f6..35d96db61 100755
--- a/Builds/VisualStudio2013/RippleD.vcxproj
+++ b/Builds/VisualStudio2013/RippleD.vcxproj
@@ -1123,6 +1123,16 @@
     </ClInclude>
     <ClInclude Include="..\..\src\ed25519-donna\modm-donna-64bit.h">
     </ClInclude>
+    <ClCompile Include="..\..\src\lz4\lib\lz4.c">
+      <ExcludedFromBuild>True</ExcludedFromBuild>
+    </ClCompile>
+    <ClInclude Include="..\..\src\lz4\lib\lz4.h">
+    </ClInclude>
+    <ClCompile Include="..\..\src\lz4\lib\xxhash.c">
+      <ExcludedFromBuild>True</ExcludedFromBuild>
+    </ClCompile>
+    <ClInclude Include="..\..\src\lz4\lib\xxhash.h">
+    </ClInclude>
     <ClCompile Include="..\..\src\protobuf\src\google\protobuf\compiler\importer.cc">
       <ExcludedFromBuild>True</ExcludedFromBuild>
     </ClCompile>
@@ -2952,6 +2962,8 @@
     </ClInclude>
     <ClCompile Include="..\..\src\ripple\unity\json.cpp">
     </ClCompile>
+    <ClCompile Include="..\..\src\ripple\unity\lz4.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\ripple\unity\net.cpp">
     </ClCompile>
     <ClCompile Include="..\..\src\ripple\unity\nodestore.cpp">
diff --git a/Builds/VisualStudio2013/RippleD.vcxproj.filters b/Builds/VisualStudio2013/RippleD.vcxproj.filters
index fc667a6a0..2406b0bb7 100644
--- a/Builds/VisualStudio2013/RippleD.vcxproj.filters
+++ b/Builds/VisualStudio2013/RippleD.vcxproj.filters
@@ -226,6 +226,12 @@
     <Filter Include="ed25519-donna">
       <UniqueIdentifier>{9DEED977-2072-A182-5BD9-CEBF206E8C91}</UniqueIdentifier>
     </Filter>
+    <Filter Include="lz4">
+      <UniqueIdentifier>{B211F8F1-22D2-47BA-C39E-F9846A844D11}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="lz4\lib">
+      <UniqueIdentifier>{4F65E5BD-7EC4-113A-4603-B4625F16BC18}</UniqueIdentifier>
+    </Filter>
     <Filter Include="protobuf">
       <UniqueIdentifier>{C535C933-C404-7C0F-2AB9-059F92DE0A80}</UniqueIdentifier>
     </Filter>
@@ -1863,6 +1869,18 @@
     <ClInclude Include="..\..\src\ed25519-donna\modm-donna-64bit.h">
       <Filter>ed25519-donna</Filter>
     </ClInclude>
+    <ClCompile Include="..\..\src\lz4\lib\lz4.c">
+      <Filter>lz4\lib</Filter>
+    </ClCompile>
+    <ClInclude Include="..\..\src\lz4\lib\lz4.h">
+      <Filter>lz4\lib</Filter>
+    </ClInclude>
+    <ClCompile Include="..\..\src\lz4\lib\xxhash.c">
+      <Filter>lz4\lib</Filter>
+    </ClCompile>
+    <ClInclude Include="..\..\src\lz4\lib\xxhash.h">
+      <Filter>lz4\lib</Filter>
+    </ClInclude>
     <ClCompile Include="..\..\src\protobuf\src\google\protobuf\compiler\importer.cc">
       <Filter>protobuf\src\google\protobuf\compiler</Filter>
     </ClCompile>
@@ -4068,6 +4086,9 @@
     <ClCompile Include="..\..\src\ripple\unity\json.cpp">
       <Filter>ripple\unity</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\ripple\unity\lz4.c">
+      <Filter>ripple\unity</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\src\ripple\unity\net.cpp">
       <Filter>ripple\unity</Filter>
     </ClCompile>
diff --git a/SConstruct b/SConstruct
index 00e1ec9c9..2534e6ddc 100644
--- a/SConstruct
+++ b/SConstruct
@@ -666,6 +666,7 @@ for tu_style in ['classic', 'unity']:
             object_builder.add_source_files(
                 'src/beast/beast/unity/hash_unity.cpp',
                 'src/ripple/unity/beast.cpp',
+                'src/ripple/unity/lz4.c',
                 'src/ripple/unity/protobuf.cpp',
                 'src/ripple/unity/ripple.proto.cpp',
                 'src/ripple/unity/resource.cpp',
diff --git a/src/ripple/unity/lz4.c b/src/ripple/unity/lz4.c
new file mode 100644
index 000000000..68431daf9
--- /dev/null
+++ b/src/ripple/unity/lz4.c
@@ -0,0 +1,24 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of rippled: https://github.com/ripple/rippled
+    Copyright (c) 2015 Ripple Labs Inc.
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include <lz4/lib/lz4.c>
+#ifdef _MSC_VER
+#include <lz4/lib/xxhash.c>
+#endif
+