diff --git a/docs/developer/code_standard_and_dev_guide.rst b/docs/developer/code_standard_and_dev_guide.rst
index 87f193b8e5..26aeb4f0aa 100644
--- a/docs/developer/code_standard_and_dev_guide.rst
+++ b/docs/developer/code_standard_and_dev_guide.rst
@@ -60,4 +60,4 @@ The `[dev]` option will help you to install some related packages when developin
 
 .. code-block:: bash
 
-    pip install -e .[dev]
+    pip install -e ".[dev]"
\ No newline at end of file