diff --git a/sources/tech/20180425 A gentle introduction to FreeDOS | Opensource.com.md b/sources/tech/20180425 A gentle introduction to FreeDOS - Opensource.com.md
similarity index 99%
rename from sources/tech/20180425 A gentle introduction to FreeDOS | Opensource.com.md
rename to sources/tech/20180425 A gentle introduction to FreeDOS - Opensource.com.md
index d37c88ffd7..d68334db33 100644
--- a/sources/tech/20180425 A gentle introduction to FreeDOS | Opensource.com.md	
+++ b/sources/tech/20180425 A gentle introduction to FreeDOS - Opensource.com.md	
@@ -138,4 +138,4 @@ via: [https://opensource.com/article/18/4/gentle-introduction-freedos][15]
 [18]: https://github.com/译者ID
 [19]: https://github.com/校对者ID
 [20]: https://github.com/LCTT/TranslateProject
-[21]: https://linux.cn/
\ No newline at end of file
+[21]: https://linux.cn/