diff --git a/.gitmodules b/.gitmodules
index e69de29bb2..2117c4bb49 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "test/input"]
+	path = test/input
+	url = https://github.com/IfcOpenShell/files