diff --git a/{{ cookiecutter.project_name_dashed }}/.devcontainer/devcontainer.json b/{{ cookiecutter.project_name_dashed }}/.devcontainer/devcontainer.json
index 1599d8d..8774f45 100644
--- a/{{ cookiecutter.project_name_dashed }}/.devcontainer/devcontainer.json	
+++ b/{{ cookiecutter.project_name_dashed }}/.devcontainer/devcontainer.json	
@@ -69,6 +69,6 @@
       }
     }
   },
-  "postCreateCommand": "make venv && . .venv/bin/activate && make install",
+  "postCreateCommand": "[ -d .venv ] || make venv && . .venv/bin/activate && make install",
   "remoteUser": "root"
-}
\ No newline at end of file
+}