diff --git a/src/spec.rs b/src/spec.rs
index 3726a58f..8738a7bd 100644
--- a/src/spec.rs
+++ b/src/spec.rs
@@ -158,6 +158,9 @@ macro_rules! from_le {
     ($obj:ident, $field:ident, $type:ty) => {
         $obj.$field = <$type>::from_le($obj.$field);
     };
+    ($obj:ident, [($field:ident, $type:ty) $(,)?]) => {
+        from_le![$obj, $field, $type];
+    };
     ($obj:ident, [($field:ident, $type:ty), $($rest:tt),+ $(,)?]) => {
         from_le![$obj, $field, $type];
         from_le!($obj, [$($rest),+]);
@@ -169,6 +172,9 @@ macro_rules! to_le {
     ($obj:ident, $field:ident, $type:ty) => {
         $obj.$field = <$type>::to_le($obj.$field);
     };
+    ($obj:ident, [($field:ident, $type:ty) $(,)?]) => {
+        to_le![$obj, $field, $type];
+    };
     ($obj:ident, [($field:ident, $type:ty), $($rest:tt),+ $(,)?]) => {
         to_le![$obj, $field, $type];
         to_le!($obj, [$($rest),+]);