diff --git a/basis/furnace/chloe-tags/chloe-tags.factor b/basis/furnace/chloe-tags/chloe-tags.factor
index faa74d1a16..0cd1d6bd38 100644
--- a/basis/furnace/chloe-tags/chloe-tags.factor
+++ b/basis/furnace/chloe-tags/chloe-tags.factor
@@ -42,7 +42,7 @@ IN: furnace.chloe-tags
 
 : compile-a-url ( tag -- )
     {
-        [ "href" required-attr compile-attr ]
+        [ "href" optional-attr compile-attr ]
         [ "rest" optional-attr compile-attr ]
         [ "query" optional-attr compile-attr ]
         [ "value" optional-attr compile-attr ]