diff --git a/.gitmodules b/.gitmodules
index fe02ef4..015989c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "libs/AXI-HS-Scheduler"]
 	path = libs/AXI-HS-Scheduler
 	url = ssh://git@git.0xmax42.io:33612/maxp/AXI-HS-Scheduler.git
+[submodule "build"]
+	path = build
+	url = git@github.com:0xMax42/Xilinx-ISE-Build.git
diff --git a/build b/build
new file mode 160000
index 0000000..54949f4
--- /dev/null
+++ b/build
@@ -0,0 +1 @@
+Subproject commit 54949f43c0a900256c15d5d964c6b1da95d27473