diff --git a/split_zip_into_smaller_chunks.py b/split_zip_into_smaller_chunks.py
index 6e2bae6..b740363 100755
--- a/split_zip_into_smaller_chunks.py
+++ b/split_zip_into_smaller_chunks.py
@@ -5,6 +5,7 @@ from io import BytesIO
 
 def printProgressBar(iteration, total, prefix = '', suffix = '', decimals = 1, length = 100, fill = '█', printEnd = "\r"):
     """
+    As found in Stack Overflow answer: https://stackoverflow.com/a/34325723
     Call in a loop to create terminal progress bar
     @params:
         iteration   - Required  : current iteration (Int)