diff --git a/.gitmodules b/.gitmodules
index 89e4a21..a4974dd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "Libraries/Adafruit-GFX-Library"]
 	path = Libraries/Adafruit-GFX-Library
 	url = git://github.com/adafruit/Adafruit-GFX-Library.git
+[submodule "Libraries/Adafruit-SD"]
+	path = Libraries/Adafruit-SD
+	url = git://github.com/adafruit/SD.git
diff --git a/Libraries/Adafruit-SD b/Libraries/Adafruit-SD
new file mode 160000
index 0000000..3216c04
--- /dev/null
+++ b/Libraries/Adafruit-SD
@@ -0,0 +1 @@
+Subproject commit 3216c04075860edece362818c9c413e9c061a186