diff --git a/.gitmodules b/.gitmodules
index 8679a50..b8e8df7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,3 +16,6 @@
 [submodule "lib/rt64"]
 	path = lib/rt64
 	url = https://github.com/rt64/rt64
+[submodule "lib/sse2neon"]
+	path = lib/sse2neon
+	url = https://github.com/DLTcollab/sse2neon
diff --git a/lib/sse2neon b/lib/sse2neon
new file mode 160000
index 0000000..42eee28
--- /dev/null
+++ b/lib/sse2neon
@@ -0,0 +1 @@
+Subproject commit 42eee28683af2c31dafcc37315f9ba400003754f