diff --git a/lib/simple_websocket_vcr/cassette.rb b/lib/simple_websocket_vcr/cassette.rb
index 7ee929e..6ba2fbd 100644
--- a/lib/simple_websocket_vcr/cassette.rb
+++ b/lib/simple_websocket_vcr/cassette.rb
@@ -29,10 +29,10 @@ def next_session
       if recording?
         erb_variables = @options[:reverse_substitution] ? @options[:erb] : nil
         session = if @using_json
-          RecordedJsonSession.new([], erb_variables)
-        else
-          RecordedYamlSession.new([], erb_variables)
-        end
+                    RecordedJsonSession.new([], erb_variables)
+                  else
+                    RecordedYamlSession.new([], erb_variables)
+                  end
         @sessions.push(session)
         @sessions.last
       else