diff --git a/.gitmodules b/.gitmodules
index 4dd04f3f3585a3d866b674c661051f2aa333c14e..117189a66168e5062b04c602bff855f1574c44cd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "workflow/external_repo"]
 	path = workflow/external_repo
 	url = https://git.biohpc.swmed.edu/s219741/astrocyte-atac-runner.git
+[submodule "workflow/external_repo/astrocyte-atac-runner"]
+	path = workflow/external_repo/astrocyte-atac-runner
+	url = https://git.biohpc.swmed.edu/s219741/astrocyte-atac-runner.git
diff --git a/workflow/external_repo/astrocyte-atac-runner b/workflow/external_repo/astrocyte-atac-runner
new file mode 160000
index 0000000000000000000000000000000000000000..a00c9cffd4efd5c61a1c637afc7ee97231f5c636
--- /dev/null
+++ b/workflow/external_repo/astrocyte-atac-runner
@@ -0,0 +1 @@
+Subproject commit a00c9cffd4efd5c61a1c637afc7ee97231f5c636