diff --git a/.gitmodules b/.gitmodules
index 2121e36..99ace9b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "kartikgo"]
 	path = kartikgo
 	url = git://github.com/kartikgo/sp2014.11-731
+[submodule "pdasigi"]
+	path = pdasigi
+	url = https://github.com/pdasigi/sp2014.11-731.git
diff --git a/pdasigi b/pdasigi
new file mode 160000
index 0000000..212fe37
--- /dev/null
+++ b/pdasigi
@@ -0,0 +1 @@
+Subproject commit 212fe3753082931b504cda4d2e7df35124c67d53