diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..3a624aa0b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "apps/rpn"]
+	path = apps/rpn
+	url = https://github.com/Omega-Numworks/Omega-RPN.git
diff --git a/apps/rpn b/apps/rpn
index 82f6da044..41c51316e 160000
--- a/apps/rpn
+++ b/apps/rpn
@@ -1 +1 @@
-Subproject commit 82f6da0440e5c2806d9889aad2550e1474e69b8d
+Subproject commit 41c51316e3093ceeaadac7186d7e7e9325f97ce9