diff --git a/lib/zip/inflater.rb b/lib/zip/inflater.rb
index 3904ce2..d499bb9 100644
--- a/lib/zip/inflater.rb
+++ b/lib/zip/inflater.rb
@@ -8,7 +8,7 @@ module Zip
       @has_returned_empty_string = false
     end
 
-    def sysread(length = nil, outbuf = '')
+    def read(length = nil, outbuf = '')
       while length.nil? || (@buffer.bytesize < length)
         break if input_finished?
         @buffer << produce_input
diff --git a/lib/zip/input_stream.rb b/lib/zip/input_stream.rb
index e417916..748e18c 100644
--- a/lib/zip/input_stream.rb
+++ b/lib/zip/input_stream.rb
@@ -80,8 +80,8 @@ module Zip
     end
 
     # Modeled after IO.sysread
-    def sysread(number_of_bytes = nil, buf = nil)
-      @decompressor.sysread(number_of_bytes, buf)
+    def sysread(length = nil, outbuf = '')
+      @decompressor.read(length, outbuf)
     end
 
     class << self
@@ -161,7 +161,7 @@ module Zip
     end
 
     def produce_input
-      @decompressor.sysread(CHUNK_SIZE)
+      @decompressor.read(CHUNK_SIZE)
     end
 
     def input_finished?
diff --git a/lib/zip/null_decompressor.rb b/lib/zip/null_decompressor.rb
index 31ae9e1..6534b16 100644
--- a/lib/zip/null_decompressor.rb
+++ b/lib/zip/null_decompressor.rb
@@ -2,7 +2,7 @@ module Zip
   module NullDecompressor #:nodoc:all
     module_function
 
-    def sysread(_length = nil, _outbuf = nil)
+    def read(_length = nil, _outbuf = nil)
       nil
     end
 
diff --git a/lib/zip/pass_thru_decompressor.rb b/lib/zip/pass_thru_decompressor.rb
index 6e5f05e..b525583 100644
--- a/lib/zip/pass_thru_decompressor.rb
+++ b/lib/zip/pass_thru_decompressor.rb
@@ -6,7 +6,7 @@ module Zip
       @has_returned_empty_string = false
     end
 
-    def sysread(length = nil, outbuf = '')
+    def read(length = nil, outbuf = '')
       if eof?
         has_returned_empty_string_val = @has_returned_empty_string
         @has_returned_empty_string = true
diff --git a/test/deflater_test.rb b/test/deflater_test.rb
index b34f357..d1970ce 100644
--- a/test/deflater_test.rb
+++ b/test/deflater_test.rb
@@ -59,7 +59,7 @@ class DeflaterTest < MiniTest::Test
   def inflate(fileName)
     File.open(fileName, 'rb') do |file|
       inflater = ::Zip::Inflater.new(file)
-      inflater.sysread
+      inflater.read
     end
   end
 
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 960f71c..224a1eb 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -66,12 +66,12 @@ module DecompressorTests
   end
 
   def test_read_everything
-    assert_equal(@refText, @decompressor.sysread)
+    assert_equal(@refText, @decompressor.read)
   end
 
   def test_read_in_chunks
     chunkSize = 5
-    while (decompressedChunk = @decompressor.sysread(chunkSize))
+    while (decompressedChunk = @decompressor.read(chunkSize))
       assert_equal(@refText.slice!(0, chunkSize), decompressedChunk)
     end
     assert_equal(0, @refText.size)