diff --git a/.gitmodules b/.gitmodules
index 411321a8d1..d277b7600d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "vendor"]
     path = vendor
     url = git://github.com/mozilla/playdoh-lib.git
+[submodule "vendor-local/src/tower"]
+	path = vendor-local/src/tower
+	url = https://github.com/clouserw/tower.git
diff --git a/vendor-local/src/tower b/vendor-local/src/tower
new file mode 160000
index 0000000000..599b621a26
--- /dev/null
+++ b/vendor-local/src/tower
@@ -0,0 +1 @@
+Subproject commit 599b621a269a1ae47512f4822880db5a13bda9b5