diff --git a/projects/datamatrix.md b/projects/datamatrix.md
index b4feb54..a74cbeb 100644
--- a/projects/datamatrix.md
+++ b/projects/datamatrix.md
@@ -3,7 +3,7 @@ author: einar
 comments: false
 date: 2006-07-22 11:23:20+00:00
 layout: page
-slug: datamatrix/
+permalink: "/projects/datamatrix/"
 title: DataMatrix
 ---