diff --git a/README.md b/README.md
index 2bbcc5d..5a47a89 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ The script is initialized with four parameters:
 The script supports the following commands:
 
 ### COPY
-Copies subtitles from one file to the output.
+Copies a range of subtitles from one file to the output, preserving their original timing.
 
 **Syntax:**
 ```