diff --git a/.gitmodules b/.gitmodules
index 90fb630619..e423e84773 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "gemoji"]
 	path = gemoji
 	url = git@github.com:github/gemoji.git
+[submodule "app/static/common/gitignore"]
+	path = app/static/common/gitignore
+	url = https://github.com/github/gitignore.git
diff --git a/app/static/common/gitignore b/app/static/common/gitignore
new file mode 160000
index 0000000000..ef033de91f
--- /dev/null
+++ b/app/static/common/gitignore
@@ -0,0 +1 @@
+Subproject commit ef033de91f04e2f9df8dbbd2d459c4be59bae507