diff --git a/Installing-the-OBITools3.md b/Installing-the-OBITools3.md
index 267c3dc..ed42fc0 100644
--- a/Installing-the-OBITools3.md
+++ b/Installing-the-OBITools3.md
@@ -10,7 +10,7 @@ Then you can install the OBITools3 in a virtual environment:
 		source obi3-env/bin/activate
 		pip install cython
 		python3 setup.py install
-		source obi_completion_script.sh
+		source obi_completion_script.bash
 		
 And test the installation with: