diff --git a/docs/setup-dev-environment.md b/docs/setup-dev-environment.md
index 376efa7a..50386a1a 100644
--- a/docs/setup-dev-environment.md
+++ b/docs/setup-dev-environment.md
@@ -307,7 +307,7 @@ pip install --upgrade setuptools wheel
 
 First install prerequisites.
 ```bash
-sudo apt-get install parallel
+sudo apt-get install -y parallel
 ```
 
 Install the required python packages. This relies on the `requirements.txt` file located