diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 2a79bee..9235c86 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -19,6 +19,7 @@
             "label": "RStudio IDE"
         }
     },
+    "workspaceMount": "source=${localWorkspaceFolder}/sub-folder,target=/workspace,type=bind",
     "workspaceFolder": "/workspace",
     // Configure tool-specific properties.
     "customizations": {