diff --git a/lib/zip/streamable_stream.rb b/lib/zip/streamable_stream.rb
index 2a4bf507..642ddae2 100644
--- a/lib/zip/streamable_stream.rb
+++ b/lib/zip/streamable_stream.rb
@@ -2,12 +2,7 @@ module Zip
   class StreamableStream < DelegateClass(Entry) # nodoc:all
     def initialize(entry)
       super(entry)
-      dirname = if zipfile.is_a?(::String)
-                  ::File.dirname(zipfile)
-                else
-                  nil
-                end
-      @temp_file = Tempfile.new(::File.basename(name), dirname)
+      @temp_file = Tempfile.new(::File.basename(name))
       @temp_file.binmode
     end