diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..d4493f8b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "xxhash"]
+	path = xxhash
+	url = https://github.com/theAeon/xxhash
+	branch = xxhash-mfu
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7ca3f20..6d6643d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,8 +148,7 @@ IF(LibCap_FOUND)
 ENDIF(LibCap_FOUND)
 
 ## XXHASH for ddup
-find_package(xxHash REQUIRED)
-INCLUDE_DIRECTORIES(${xxHash_INCLUDE_DIRS})
+INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/xxhash/cmake_unofficial)
 
 # Setup Installation
 
@@ -199,3 +198,4 @@ INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/src/common)
 ADD_SUBDIRECTORY(src)
 ADD_SUBDIRECTORY(test)
 ADD_SUBDIRECTORY(man)
+
diff --git a/xxhash b/xxhash
new file mode 160000
index 00000000..a0a74511
--- /dev/null
+++ b/xxhash
@@ -0,0 +1 @@
+Subproject commit a0a74511bab50b8c0b644d1f263dbb8e43df05d7