diff --git a/.gitmodules b/.gitmodules
index 6b415426..39396d17 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -475,3 +475,6 @@
 [submodule "repos/ILovePerlin"]
 	path = repos/ILovePerlin
 	url = https://github.com/digitalhappens/ILovePerlin.git
+[submodule "repos/NonlinearCircuits"]
+	path = repos/NonlinearCircuits
+	url = https://github.com/mhetrick/nonlinearcircuits.git
diff --git a/repos/NonlinearCircuits b/repos/NonlinearCircuits
new file mode 160000
index 00000000..8b17462b
--- /dev/null
+++ b/repos/NonlinearCircuits
@@ -0,0 +1 @@
+Subproject commit 8b17462be549b08b97b8dc168875a39785628c5c