diff --git a/.gitmodules b/.gitmodules
index 418b68d..dfc149b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "bitshuffle"]
 	path = bitshuffle
 	url = https://github.com/kiyo-masui/bitshuffle.git
+[submodule "lz4"]
+	path = lz4
+	url = https://github.com/lz4/lz4.git
diff --git a/lz4 b/lz4
new file mode 160000
index 0000000..202d647
--- /dev/null
+++ b/lz4
@@ -0,0 +1 @@
+Subproject commit 202d647ff420d614bd16adf5257ad79580eaeb1c