diff --git a/README.md b/README.md
index 82239d3..551b70e 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,8 @@ Additionally, after organising submissions, you can inspect all submitted files
 - Usage: `python inspect_submissions.py GRADEBOOK_DIR_NAME`
   - Note: run *after* organising a gradebook with `organise_gradebook.py`
 - In order to exclude files from hashing, create a CSV file in directory *csv* to provide the file names to be excluded
-  - e.g. for AssignmentX: create AssignmentX_excluded.csv, with a column named "exclude_filename" and list the file names
+  - e.g. for AssignmentX: create *AssignmentX_excluded.csv*, with a column named "exclude_filename" and list the file names
+  - Note: the directory *csv* is automatically created when you run inspect_submissions.py - you need to create it manually if you want to exclude files before the first run 
 - Generated CSV files can be found in directory *csv*, with *GRADEBOOK_DIR_NAME* as file name prefix
   - e.g. inspecting submissions for *AssignmentX* will create 2 csv files:
     - AssignmentX_file_hashes_[datetime].csv