# must fail: dash_adjacency_attribute_twice
# an attribute twice read (dash_read::read_xml)
diff --git a/wai/wai-rs/src/http_binding/dash_read.rs b/wai/wai-rs/src/http_binding/dash_read.rs
index 71e36cde..ea32b008 100644
--- a/wai/wai-rs/src/http_binding/dash_read.rs
+++ b/wai/wai-rs/src/http_binding/dash_read.rs
@@ -204,7 +204,7 @@ impl<'a> Reader<'a> {
             }
             self.space();
             let v = self.attr_value()?;
-            if !names.insert(k.clone()) {
+            if !names.insert(k.clone()) && false {
                 return Err(malformed(format!("the attribute {k} twice")));
             }
             attrs.push((k, v));