diff --git a/README.md b/README.md
index 8dcebbc5a288d902932ba664426ee110ac6a1457..1cc6d930acb38489ac5514f07709571543a9c1eb 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ you also need to set the following environment variables in the terminal in
 order to access the installed gr-cdc module.
 
 ```
-$ export PYTHONPATH=/usr/local/lib/python3/dist_packages/
+$ export PYTHONPATH=/usr/local/lib/python3/dist-packages/
 $ export LD_LIBRARY_PATH=/usr/local/lib/x86_64-linux-gnu/
 $ sudo ldconfig
 ```