diff --git a/doc/languages-frameworks/python.section.md b/doc/languages-frameworks/python.section.md
index 5eabb866654ef..a83daf9774d05 100644
--- a/doc/languages-frameworks/python.section.md
+++ b/doc/languages-frameworks/python.section.md
@@ -997,6 +997,7 @@ stdenv.mkDerivation {
   SOURCE_DATE_EPOCH=$(date +%s)
   virtualenv --no-setuptools venv
   export PATH=$PWD/venv/bin:$PATH
+  export PYTHONPATH=venv/lib/python2.7/site-packages/:$PYTHONPATH
   pip install -r requirements.txt
   '';
 }