diff --git a/.gitmodules b/.gitmodules
index 94bc43d..625f147 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -25,3 +25,6 @@
 [submodule "ext/FastPFor"]
 	path = ext/FastPFor
 	url = https://github.com/lemire/FastPFor
+[submodule "ext/c-blosc"]
+	path = ext/c-blosc
+	url = https://github.com/Blosc/c-blosc.git
diff --git a/ext/c-blosc b/ext/c-blosc
new file mode 160000
index 0000000..254ffdf
--- /dev/null
+++ b/ext/c-blosc
@@ -0,0 +1 @@
+Subproject commit 254ffdf6fb75470924d6b7bb6dca6f4b67a6ca5a