diff --git a/.gitmodules b/.gitmodules
index 2926701..1959779 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7807,3 +7807,6 @@
 [submodule "ocaml-menhir"]
 	path = ocaml-menhir
 	url = ../../pool/ocaml-menhir
+[submodule "389-ds"]
+	path = 389-ds
+	url = ../../ALP-pool/389-ds
diff --git a/389-ds b/389-ds
new file mode 160000
index 0000000..e91fee7
--- /dev/null
+++ b/389-ds
@@ -0,0 +1 @@
+Subproject commit e91fee79993f7600b58248d470085e6d015a27c2