diff --git a/lib/jekyll/albino.rb b/lib/jekyll/albino.rb
index db59f2da..f452b329 100644
--- a/lib/jekyll/albino.rb
+++ b/lib/jekyll/albino.rb
@@ -65,6 +65,7 @@ class Albino
       stdin.puts @target
       stdin.close
       output = stdout.read.strip
+      [stdout, stderr].each { |io| io.close }
     end
     output
   end