diff --git a/README.md b/README.md
index 6691817..1b7dcd5 100644
--- a/README.md
+++ b/README.md
@@ -12,5 +12,7 @@ pip install xxhash opencv-python
 ## Useage:
 
 ```
+cd dedup
+source myenv/bin/activate
 python debup.py 0.jpg 1.jpg
 ```