diff --git a/lib/imbecile.rb b/lib/imbecile.rb
index 1d9c977..8ab70f6 100644
--- a/lib/imbecile.rb
+++ b/lib/imbecile.rb
@@ -10,7 +10,7 @@ require_relative "imbecile/regex/fa/state"
 require_relative "imbecile/regex/fa/state/transition"
 require_relative "imbecile/regex/nfa"
 require_relative "imbecile/regex/unit"
-require_relative "imbecile/token_dfa"
+require_relative "imbecile/lexer_dfa"
 require_relative "imbecile/version"
 
 module Imbecile
@@ -27,8 +27,8 @@ module Imbecile
         grammar.tokens.each do |token|
           puts token.nfa
         end
-        token_dfa = TokenDFA.new(grammar.tokens)
-        puts token_dfa
+        lexer_dfa = LexerDFA.new(grammar.tokens)
+        puts lexer_dfa
       rescue Error => e
         $stderr.puts e.message
         return 2
diff --git a/lib/imbecile/token_dfa.rb b/lib/imbecile/lexer_dfa.rb
similarity index 98%
rename from lib/imbecile/token_dfa.rb
rename to lib/imbecile/lexer_dfa.rb
index 039160a..8ec7965 100644
--- a/lib/imbecile/token_dfa.rb
+++ b/lib/imbecile/lexer_dfa.rb
@@ -1,6 +1,6 @@
 module Imbecile
 
-  class TokenDFA < Regex::FA
+  class LexerDFA < Regex::FA
 
     def initialize(tokens)
       super()
diff --git a/spec/imbecile_spec.rb b/spec/imbecile_spec.rb
index 7339dc1..352158a 100644
--- a/spec/imbecile_spec.rb
+++ b/spec/imbecile_spec.rb
@@ -51,7 +51,7 @@ end
 
 def run(grammar, input)
   g = Imbecile::Grammar.new(grammar)
-  token_dfa = Imbecile::TokenDFA.new(g.tokens)
+  token_dfa = Imbecile::LexerDFA.new(g.tokens)
   test_lexer = TestLexer.new(token_dfa)
   test_lexer.lex(input)
 end