diff --git a/Wolf-tutorial-with-the-OBITools3.md b/Wolf-tutorial-with-the-OBITools3.md
index 596f603..48ef398 100644
--- a/Wolf-tutorial-with-the-OBITools3.md
+++ b/Wolf-tutorial-with-the-OBITools3.md
@@ -131,11 +131,11 @@ For EMBL files, you can give the path to a directory with several EMBL files.
 
 		obi grep --require-rank=species --require-rank=genus --require-rank=family --taxonomy wolf/taxonomy/my_tax wolf/v05_refs wolf/v05_refs_clean
 
-2. Dereplicate identical sequences:
+2. Dereplicate identical sequences (note: not a necessary step, avoid for big databases as long as #79 is not fixed):
 	
 		obi uniq --taxonomy wolf/taxonomy/my_tax wolf/v05_refs_clean wolf/v05_refs_uniq
 
-3. Ensure that the dereplicated sequences have a taxid at the family level:
+3. Ensure that the dereplicated sequences have a taxid at the family level (if you ran the previous step):
 
 		obi grep --require-rank=family --taxonomy wolf/taxonomy/my_tax wolf/v05_refs_uniq wolf/v05_refs_uniq_clean