diff --git a/.gitmodules b/.gitmodules
index 06d68ea..6cf702b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "lib/WDL"]
 	path = lib/WDL
 	url = https://github.com/justinfrankel/WDL.git
+[submodule "lib/opus"]
+	path = lib/opus
+	url = https://github.com/xiph/opus
diff --git a/lib/opus b/lib/opus
new file mode 160000
index 0000000..2d862ea
--- /dev/null
+++ b/lib/opus
@@ -0,0 +1 @@
+Subproject commit 2d862ea14b233e5a3f3afaf74d96050691af3cd5