diff --git a/data-mapper/index.md b/data-mapper/index.md
index 28b3939ee..075e8eece 100644
--- a/data-mapper/index.md
+++ b/data-mapper/index.md
@@ -2,7 +2,7 @@
 layout: pattern
 title: Data Mapper
 folder: data-mapper
-permalink: /patterns/dm/
+permalink: /patterns/data-mapper/
 categories: Persistence Tier
 tags:
  - Java