diff --git a/lib/ably/realtime/channel.rb b/lib/ably/realtime/channel.rb
index a7a83ed54..6781b1071 100644
--- a/lib/ably/realtime/channel.rb
+++ b/lib/ably/realtime/channel.rb
@@ -323,6 +323,8 @@ def clear_error_reason
       def update_options(channel_options)
         @options = channel_options.clone.freeze
       end
+      alias set_options update_options # (RSL7)
+      alias options= update_options
 
       # Used by {Ably::Modules::StateEmitter} to debug state changes
       # @api private
diff --git a/lib/ably/rest/channel.rb b/lib/ably/rest/channel.rb
index 91f72832e..2a187fe2e 100644
--- a/lib/ably/rest/channel.rb
+++ b/lib/ably/rest/channel.rb
@@ -168,6 +168,8 @@ def presence
       def update_options(channel_options)
         @options = channel_options.clone.freeze
       end
+      alias set_options update_options # (RSL7)
+      alias options= update_options
 
       private
       def base_path