diff --git a/flatcar.pkr.hcl b/flatcar.pkr.hcl
index db96123..3b14685 100644
--- a/flatcar.pkr.hcl
+++ b/flatcar.pkr.hcl
@@ -93,7 +93,7 @@ build {
           "$channel", var.channel),
           "$version", local.version),
           "$architecture", source.value),
-          "$board", local.boards[source.name])
+          "$board", local.boards[source.value])
       }
     }
   }