diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..25e7055
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "spec/cs241h"]
+	path = spec/cs241h
+	url = git@github.com:earwig/kgrader-spec-cs241h.git
diff --git a/spec/cs241h b/spec/cs241h
new file mode 160000
index 0000000..7da2784
--- /dev/null
+++ b/spec/cs241h
@@ -0,0 +1 @@
+Subproject commit 7da2784b2255082339483744aa388cab2e016126