diff --git a/README.md b/README.md
index 31c3dde..00ad0a7 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ as a service, Rally.
 
 The rally snap can be installed directly from the snap store:
 
-    sudo snap install --edge rally
+    sudo snap install --edge --classic rally
 
 then setup the alias for rally-manage (this will automatically happen at some
 point in the future):