diff --git a/src/descriptor/dsl.rs b/src/descriptor/dsl.rs
index b3f62ae5..405be39f 100644
--- a/src/descriptor/dsl.rs
+++ b/src/descriptor/dsl.rs
@@ -228,10 +228,11 @@ macro_rules! impl_sortedmulti {
         use $crate::keys::IntoDescriptorKey;
         let secp = $crate::bitcoin::secp256k1::Secp256k1::new();
 
-        let mut keys = vec![];
-        $(
-            keys.push($key.into_descriptor_key());
-        )*
+        let keys = vec![
+            $(
+                $key.into_descriptor_key(),
+            )*
+        ];
 
         keys.into_iter().collect::<Result<Vec<_>, _>>()
             .map_err($crate::descriptor::DescriptorError::Key)
@@ -656,10 +657,11 @@ macro_rules! fragment {
         use $crate::keys::IntoDescriptorKey;
         let secp = $crate::bitcoin::secp256k1::Secp256k1::new();
 
-        let mut keys = vec![];
-        $(
-            keys.push($key.into_descriptor_key());
-        )*
+        let keys = vec![
+            $(
+                $key.into_descriptor_key(),
+            )*
+        ];
 
         keys.into_iter().collect::<Result<Vec<_>, _>>()
             .map_err($crate::descriptor::DescriptorError::Key)
diff --git a/src/descriptor/template.rs b/src/descriptor/template.rs
index 8ad9eaf7..3fdbec89 100644
--- a/src/descriptor/template.rs
+++ b/src/descriptor/template.rs
@@ -440,11 +440,11 @@ macro_rules! expand_make_bipxx {
                     KeychainKind::Internal => vec![bip32::ChildNumber::from_normal_idx(1)?].into(),
                 };
 
-                let mut source_path = Vec::with_capacity(3);
-                source_path.push(bip32::ChildNumber::from_hardened_idx(bip)?);
-                source_path.push(bip32::ChildNumber::from_hardened_idx(0)?);
-                source_path.push(bip32::ChildNumber::from_hardened_idx(0)?);
-                let source_path: bip32::DerivationPath = source_path.into();
+                let source_path = bip32::DerivationPath::from(vec![
+                    bip32::ChildNumber::from_hardened_idx(bip)?,
+                    bip32::ChildNumber::from_hardened_idx(0)?,
+                    bip32::ChildNumber::from_hardened_idx(0)?,
+                ]);
 
                 Ok((key, (parent_fingerprint, source_path), derivation_path))
             }