diff --git a/.gitmodules b/.gitmodules
index 4d3d3c4..bf1c979 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -25,3 +25,6 @@
 [submodule "fringe-helper.el"]
 	path = fringe-helper.el
 	url = https://github.com/nschum/fringe-helper.el.git
+[submodule "smart-tab"]
+	path = smart-tab
+	url = https://github.com/genehack/smart-tab.git
diff --git a/smart-tab b/smart-tab
new file mode 160000
index 0000000..da4168b
--- /dev/null
+++ b/smart-tab
@@ -0,0 +1 @@
+Subproject commit da4168baeb5fd213f1c3b8f7656648aaae79fbcf