diff --git a/.gitmodules b/.gitmodules
index 23fa587..f13fb62 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -128,3 +128,8 @@
 	url = https://cau-gin.brainminds.riken.jp/brainminds/MTI-R01_0083
 	datalad-id = ea567886-7854-4bc8-8b78-ba5e08f32970
 	datalad-url = https://cau-gin.brainminds.riken.jp/brainminds/MTI-R01_0083
+[submodule "MTI-R01_0088"]
+	path = MTI-R01_0088
+	url = https://cau-gin.brainminds.riken.jp/brainminds/MTI-R01_0088
+	datalad-id = 05cb5337-632c-4a41-9595-ed039f87a3d1
+	datalad-url = https://cau-gin.brainminds.riken.jp/brainminds/MTI-R01_0088
diff --git a/MTI-R01_0088 b/MTI-R01_0088
new file mode 160000
index 0000000..7051862
--- /dev/null
+++ b/MTI-R01_0088
@@ -0,0 +1 @@
+Subproject commit 7051862d954cff7ead6c248f3f1d62d3c196bf59