diff --git a/enstools/encoding/chunk_size.py b/enstools/encoding/chunk_size.py
index ae859fb182dd4bd6463ab9f49b1dcac556479b54..611fe6d85fdacb38b9d870607f54da6b216a7450 100644
--- a/enstools/encoding/chunk_size.py
+++ b/enstools/encoding/chunk_size.py
@@ -1,6 +1,10 @@
 # Using a module file to store the desired chunk size.
+
+# Chunk size used to save files to disk
 chunk_size = "10MB"
 
+# Chunk size used for the analysis
+analysis_chunk_size = "100KB"
 def change_chunk_size(new_chunk_size: str):
     global chunk_size
     chunk_size = new_chunk_size