diff --git a/docs/advanced.rst b/docs/advanced.rst
index 364cea67..a82efa4a 100644
--- a/docs/advanced.rst
+++ b/docs/advanced.rst
@@ -387,13 +387,16 @@ will detect it.
       directory where the Pipfile is located, instruct pipenv to find the
       Pipfile in the location specified by this environment variable.
 
-    - ``PIPENV_CACHE_DIR`` — Location for Pipenv to store it's package cache.
+    - ``PIPENV_CACHE_DIR`` — Location for Pipenv to store it's package cache. This is useful in the
+      same situations that you would change ``PIP_CACHE_DIR``.
 
     - ``PIPENV_HIDE_EMOJIS`` — Disable emojis in output.
 
-    - ``PIPENV_DOTENV_LOCATION`` — Location for Pipenv to load your project's .env.
+    - ``PIPENV_DOTENV_LOCATION`` — Location of the project's .env file, only useful to set if it's not inthe same directory as the Pipfile.
 
-    - ``PIPENV_DONT_LOAD_ENV`` — Tell Pipenv not to load the .env files automatically.
+    - ``PIPENV_DONT_LOAD_ENV`` — Tell Pipenv not to load the .env file.
+
+    - ``PIPENV_VENV_IN_PROJECT`` — Set to create the virtual environment folder in the project instead of the default location.
 
 If you'd like to set these environment variables on a per-project basis, I recommend utilizing the fantastic `direnv <https://direnv.net>`_ project, in order to do so.