diff --git a/src/data.md b/src/data.md
index 2080b95..91b43a2 100644
--- a/src/data.md
+++ b/src/data.md
@@ -16,4 +16,4 @@ contributing any new facts or improvements to the Reference instead.
 
 
 
-ref-type-layout: ../reference/type-layout.html
+[ref-type-layout]: ../reference/type-layout.html