diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 03c96d50c..b19a7839d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -26,6 +26,7 @@ Activate the virtual environment
 
 ```
 For cmd.exe: PyfaEnv\scripts\activate.bat
+For PowerShell: PyfaEnv\Scripts\Activate.ps1
 For bash: source <venv>/Scripts/activate
 ```
 > For other OS check [Python documentation](https://docs.python.org/3/library/venv.html)