diff --git a/test/net/imap/fake_server/command_reader.rb b/test/net/imap/fake_server/command_reader.rb
index 8495e5d4..b8ee6fe7 100644
--- a/test/net/imap/fake_server/command_reader.rb
+++ b/test/net/imap/fake_server/command_reader.rb
@@ -10,7 +10,7 @@ class CommandReader
 
     def initialize(socket)
       @socket = socket
-      @last_comma0 = nil
+      @last_command = nil
     end
 
     def get_command