diff --git a/README.md b/README.md
index 9891c4d..c77070d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # pdf-unlock #
 
-__pdf_unlock__ removes security features from pdfs.
+__pdf_unlock.py__ removes security features from pdfs.
 
 ## Installation ##