diff --git a/source/How-To-Guides/Using-Python-Packages.rst b/source/How-To-Guides/Using-Python-Packages.rst
index 63808a901ee..aa80da64e1b 100644
--- a/source/How-To-Guides/Using-Python-Packages.rst
+++ b/source/How-To-Guides/Using-Python-Packages.rst
@@ -78,7 +78,7 @@ Then setup your virtual environment:
     # Make a virtual env and activate it
     virtualenv -p python3 ./venv
     source ./venv/bin/activate
-    # Make sure that colcon doesn't try to build the venv
+    # Make sure that colcon does not try to build the venv
     touch ./venv/COLCON_IGNORE
 
 Next, install the Python packages that you want in your virtual environment: