diff --git a/images/aws/README.md b/images/aws/README.md
index 5c1c05b97..3a86b0df1 100644
--- a/images/aws/README.md
+++ b/images/aws/README.md
@@ -22,4 +22,9 @@ $ blockstack-server --debug start
 $ tail -f ~/.blockstack-server/blockstack-server.log
 ```
 
-If you run into any issues, you can talk to us in the #support channel at http://chat.blockstack.org
\ No newline at end of file
+If you run into any issues, you can talk to us in the #support channel at http://chat.blockstack.org
+
+Note: fastsyn command usage is changing and we'll update it shortly:
+```
+$ blockstack-core --debug fast_sync http://40.121.156.215/snapshot.bsk
+```
\ No newline at end of file