diff --git a/src/lib.rs b/src/lib.rs
index 6ae9a73..3d990d3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -282,12 +282,7 @@ impl<'a> PartialEq<OID> for &'a OID {
 #[macro_export]
 macro_rules! oid {
     ( $( $e: expr ),* ) => {{
-        let mut res = Vec::new();
-
-        $(
-            res.push($crate::BigUint::from($e as u64));
-        )*
-        $crate::OID::new(res)
+        $crate::OID::new(vec![$($crate::BigUint::from($e as u64)),*])
     }};
 }