diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..1a81450
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "core"]
+	path = core
+	url = git@github.com:flarum/core.git
diff --git a/core b/core
new file mode 160000
index 0000000..eef16ec
--- /dev/null
+++ b/core
@@ -0,0 +1 @@
+Subproject commit eef16ec8cc36be8eabd89592b050c4531b42186c