diff --git a/README.md b/README.md
index 326f3dc..72880af 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,11 @@
 
 Use 
 ```console
-python3 uniprot-api.py -t 150 -p 10
+python3 uniprot-api.py -t 150 -p 10 -v
 ```
 
+**Important**: use `-v` to display the differences between the amino acids that MCSA expects, sOG expects, and what UniProt says **even in the event that MCSA and UniProt do not line up perfectly**.
+
 # Flags
 
 `-t <number of entries>`: go through the first `<number of entries>` entries in the `rhea_unclassified_unique_ec4_candidates.tsv` file.