diff --git a/website/source/docs/job-specification/constraint.html.md b/website/source/docs/job-specification/constraint.html.md
index c8a6fab3e..407cbca40 100644
--- a/website/source/docs/job-specification/constraint.html.md
+++ b/website/source/docs/job-specification/constraint.html.md
@@ -133,7 +133,7 @@ constraint {
     ```hcl
     constraint {
       operator  = "distinct_property"
-      attribute = "${meta.rack"}
+      attribute = "${meta.rack}"
     }
     ```