diff --git a/lib/youplot.rb b/lib/youplot.rb
index 831c4e4..b2b926f 100644
--- a/lib/youplot.rb
+++ b/lib/youplot.rb
@@ -2,7 +2,7 @@
 
 require 'unicode_plot'
 require 'youplot/version'
-require 'youplot/dsv_reader'
+require 'youplot/dsv'
 require 'youplot/command'
 
 module YouPlot
diff --git a/lib/youplot/command.rb b/lib/youplot/command.rb
index bc41a00..17c105a 100644
--- a/lib/youplot/command.rb
+++ b/lib/youplot/command.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require_relative 'dsv_reader'
+require_relative 'dsv'
 require_relative 'command/parser'
 
 # FIXME
@@ -54,7 +54,7 @@ module YouPlot
 
     def read_dsv(input)
       input = input.dup.force_encoding(options[:encoding]).encode('utf-8') if options[:encoding]
-      DSVReader.input(input, options[:delimiter], options[:headers], options[:transpose])
+      DSV.input(input, options[:delimiter], options[:headers], options[:transpose])
     end
 
     def create_plot
diff --git a/lib/youplot/dsv_reader.rb b/lib/youplot/dsv.rb
similarity index 98%
rename from lib/youplot/dsv_reader.rb
rename to lib/youplot/dsv.rb
index decad65..f0faa6c 100644
--- a/lib/youplot/dsv_reader.rb
+++ b/lib/youplot/dsv.rb
@@ -4,7 +4,7 @@ require 'csv'
 
 module YouPlot
   # Read and interpret Delimiter-separated values format file or stream.
-  module DSVReader
+  module DSV
     module_function
 
     def input(input, delimiter, headers, transpose)
diff --git a/test/youplot/dev_reader_test.rb b/test/youplot/dev_reader_test.rb
index f448250..30ffbd6 100644
--- a/test/youplot/dev_reader_test.rb
+++ b/test/youplot/dev_reader_test.rb
@@ -2,9 +2,9 @@
 
 require_relative '../test_helper'
 
-class YouPlotDSVReaderTest < Test::Unit::TestCase
+class YouPlotDSVTest < Test::Unit::TestCase
   def setup
-    @m = YouPlot::DSVReader
+    @m = YouPlot::DSV
   end
 
   test :transpose2 do