diff --git a/docs/users/jupyterlab/4.2/index.md b/docs/users/jupyterlab/4.2/index.md
index 8ffe9c1df6ade723bb7ce360b65a5d9f5d7a3ee6..629039274d2649dfa469a68857a85c5cba92c2a5 100644
--- a/docs/users/jupyterlab/4.2/index.md
+++ b/docs/users/jupyterlab/4.2/index.md
@@ -82,12 +82,12 @@ One of the standout features of JUNIQ is the flexibility it offers users to inst
 
 <h3>1. <strong>Install python package</strong></h3>
 ```
-source /tmp/custom/load_jupyter_version.sh # This loads the jupyter environment
+test -f /tmp/custom/load_jupyter_version.sh && source /tmp/custom/load_jupyter_version.sh # Load the jupyter environment, only required on JSC-Cloud
 pip install --user jupyterview # or the extension you would like to install
 ```
 You can check the success with these commands:  
 ```
-source /tmp/custom/load_jupyter_version.sh # This loads the jupyter environment
+test -f /tmp/custom/load_jupyter_version.sh && source /tmp/custom/load_jupyter_version.sh # Load the jupyter environment, only required on JSC-Cloud
 jupyter labextension list
 ```
 > You will find the installed extension in this list. The extension might be listed with the hint "enabled X" instead of "enabled OK", that should be an issue while using the extension.
@@ -110,7 +110,7 @@ Browse to the [home](https://juniq.fz-juelich.de/hub/home) page and Stop your ru
 ## Uninstall your own Extensions
 To remove the previously installed extension, you have to set `PYTHONNOUSERSITE` to `0`. Otherwise pip will not look into the locally installed packages. 
 ```
-source /tmp/custom/load_jupyter_version.sh # This loads the jupyter environment
+test -f /tmp/custom/load_jupyter_version.sh && source /tmp/custom/load_jupyter_version.sh # Load the jupyter environment, only required on JSC-Cloud
 PYTHONNOUSERSITE=0 pip uninstall jupyterview
 ```
 After a restart of your JupyterLab, the extension will be fully removed.