diff --git a/huffman-coding.py b/huffman-coding.py
index 65ac762..9226c55 100644
--- a/huffman-coding.py
+++ b/huffman-coding.py
@@ -1,3 +1,4 @@
+# import module to sort characters in order of frequency
 from collections import Counter
 
 # function to find path of desired character