diff --git a/.gitmodules b/.gitmodules
index c1a6cbf1b..0594030f9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "translators"]
 	path = translators
 	url = git://github.com/zotero/translators.git
+[submodule "chrome/content/zotero/locale/csl"]
+	path = chrome/content/zotero/locale/csl
+	url = git://github.com/citation-style-language/locales.git
diff --git a/chrome/content/zotero/locale/csl b/chrome/content/zotero/locale/csl
new file mode 160000
index 000000000..33ece5953
--- /dev/null
+++ b/chrome/content/zotero/locale/csl
@@ -0,0 +1 @@
+Subproject commit 33ece59538bf1fde71a3e9f003136f1b30c68d7a