diff --git a/xtask/src/gen_calls_doc.rs b/xtask/src/gen_calls_doc.rs
index e1bd5e97d6db79da22ce44397a10b9865194a4e8..d60bd2b6a845563693b6f1f045dcbc7a8ff765e8 100644
--- a/xtask/src/gen_calls_doc.rs
+++ b/xtask/src/gen_calls_doc.rs
@@ -71,7 +71,6 @@ impl From<&scale_info::Variant<PortableForm>> for Call {
         Self {
             documentation: variant
                 .docs()
-                .to_vec()
                 .iter()
                 .take_while(|line| !line.starts_with("# <weight>"))
                 .cloned()