diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..d3f49d74
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "custom_components/places/recorder_history_prefilter"]
+	path = custom_components/places/recorder_history_prefilter
+	url = https://github.com/gcobb321/recorder_history_prefilter
diff --git a/custom_components/places/recorder_history_prefilter b/custom_components/places/recorder_history_prefilter
new file mode 160000
index 00000000..9a1e1426
--- /dev/null
+++ b/custom_components/places/recorder_history_prefilter
@@ -0,0 +1 @@
+Subproject commit 9a1e1426aa4fb5f1bcc82a868f989fdb4ebe9451