diff --git a/lib/pigeon/lexer.rb b/lib/pigeon/lexer.rb
index 9784dd2..7753ff9 100644
--- a/lib/pigeon/lexer.rb
+++ b/lib/pigeon/lexer.rb
@@ -9,7 +9,7 @@ module Pigeon
     end
 
     def initialize(bundle_string)
-      @bundle_string = bundle_string + "\n"
+      @bundle_string = bundle_string
       @scanner = StringScanner.new(bundle_string)
       @tokens = []
       @state = HEADER