diff --git a/lib/dunlop/engine.rb b/lib/dunlop/engine.rb
index 0f0cb5d..bfb2d43 100644
--- a/lib/dunlop/engine.rb
+++ b/lib/dunlop/engine.rb
@@ -73,6 +73,14 @@ module Dunlop
           end
         end
       end
+
+      #FIXES
+
+      #A CSV FILE STARTING WITH MZ IS RECOGNIZED AS X-MS-DOS-EXECUTABLE
+      # https://github.com/minad/mimemagic/issues/67
+      if mime_magic_ms_dos_index = MimeMagic::MAGIC.index{|r| r == ['application/x-ms-dos-executable', [[0, 'MZ']]]}
+        MimeMagic::MAGIC.delete_at(mime_magic_ms_dos_index)
+      end
     end
   end
 end