diff --git a/.gitmodules b/.gitmodules
index c1047860..1e3b0441 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -121,3 +121,6 @@
 [submodule "vendor/github.com/mgutz/ansi"]
 	path = vendor/github.com/mgutz/ansi
 	url = https://github.com/mgutz/ansi
+[submodule "vendor/github.com/estesp/manifest-tool"]
+	path = vendor/github.com/estesp/manifest-tool
+	url = https://github.com/estesp/manifest-tool
diff --git a/vendor/github.com/estesp/manifest-tool b/vendor/github.com/estesp/manifest-tool
new file mode 160000
index 00000000..2db1e2f7
--- /dev/null
+++ b/vendor/github.com/estesp/manifest-tool
@@ -0,0 +1 @@
+Subproject commit 2db1e2f73b11b24699394e7b15f2fd0241cc4cb7