diff --git a/src/macros.rs b/src/macros.rs
index 80d4681..b749592 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -173,7 +173,7 @@ macro_rules! zero_trailing_setter {
             #[doc = "This method panics if the given value is not"]
             #[doc = $expect]
             #[doc = "."]
-            $vis fn set(&mut $self_,value:$ty) -> &mut Self {
+            $vis fn $method(&mut $self_,value:$ty) -> &mut Self {
                 use bit_field::BitField;
 
                 assert!(value.trailing_zeros() >= $start, "The {} must be {}.", $name, $expect);
diff --git a/src/ring/mod.rs b/src/ring/mod.rs
index 581ef57..f16ad76 100644
--- a/src/ring/mod.rs
+++ b/src/ring/mod.rs
@@ -61,7 +61,6 @@ impl EventRingSegmentTableEntry {
         }
     }
 }
-
 impl EventRingSegmentTableEntry {
     rw_double_zero_trailing!(
         pub, self,
@@ -84,7 +83,6 @@ impl EventRingSegmentTableEntry {
         self.ring_segment_base_address() + (self.ring_segment_size() as u64)
     }
 }
-
 impl Index<usize> for EventRingSegmentTableEntry {
     type Output = event::TRB;
 
@@ -94,7 +92,6 @@ impl Index<usize> for EventRingSegmentTableEntry {
         &slice[index]
     }
 }
-
 impl IndexMut<usize> for EventRingSegmentTableEntry {
     fn index_mut(&mut self, index: usize) -> &mut Self::Output {
         let slice = self.as_mut_slice();
diff --git a/src/ring/trb/transfer.rs b/src/ring/trb/transfer.rs
index f81b293..e6bf364 100644
--- a/src/ring/trb/transfer.rs
+++ b/src/ring/trb/transfer.rs
@@ -101,6 +101,9 @@ allowed_trb!("Transfer TRB", {
     /// No Op Transfer TRB
     NoOp = 8,
 });
+impl TRB {
+    ro_bit!(pub, self, self.0[3]; 4, chain_bit, "Chain");
+}
 
 impl Normal {
     impl_data_buffer_pointer!();