diff --git a/neqo-transport/src/connection/mod.rs b/neqo-transport/src/connection/mod.rs
index bb05499091..2ff2f7cc26 100644
--- a/neqo-transport/src/connection/mod.rs
+++ b/neqo-transport/src/connection/mod.rs
@@ -2269,8 +2269,7 @@ impl Connection {
             let aead_expansion = tx.expansion();
             builder.set_limit(profile.limit() - aead_expansion);
             builder.enable_padding(needs_padding);
-            let limit = builder.limit();
-            debug_assert!(limit <= 2048);
+            debug_assert!(builder.limit() <= 2048);
             if builder.is_full() {
                 encoder = builder.abort();
                 break;
diff --git a/neqo-transport/src/packet/mod.rs b/neqo-transport/src/packet/mod.rs
index 044df78761..dd1bc225c5 100644
--- a/neqo-transport/src/packet/mod.rs
+++ b/neqo-transport/src/packet/mod.rs
@@ -361,8 +361,7 @@ impl PacketBuilder {
             for v in values {
                 self.encode_varint(*v);
             }
-            let limit = self.limit();
-            debug_assert!(self.len() <= limit);
+            debug_assert!(self.len() <= self.limit());
         };
         write
     }
diff --git a/neqo-transport/src/quic_datagrams.rs b/neqo-transport/src/quic_datagrams.rs
index c73d659485..af82d8124e 100644
--- a/neqo-transport/src/quic_datagrams.rs
+++ b/neqo-transport/src/quic_datagrams.rs
@@ -121,8 +121,7 @@ impl QuicDatagrams {
                     builder.encode(dgram.as_ref());
                     builder.mark_full();
                 }
-                let limit = builder.limit();
-                debug_assert!(builder.len() <= limit);
+                debug_assert!(builder.len() <= builder.limit());
                 stats.frame_tx.datagram += 1;
                 tokens.push(RecoveryToken::Datagram(*dgram.tracking()));
             } else if tokens.is_empty() {
diff --git a/neqo-transport/src/send_stream.rs b/neqo-transport/src/send_stream.rs
index 2d907cf7a7..cf21ff9fa8 100644
--- a/neqo-transport/src/send_stream.rs
+++ b/neqo-transport/src/send_stream.rs
@@ -994,8 +994,7 @@ impl SendStream {
             } else {
                 builder.encode_vvec(&data[..length]);
             }
-            let limit = builder.limit();
-            debug_assert!(builder.len() <= limit);
+            debug_assert!(builder.len() <= builder.limit());
 
             self.mark_as_sent(offset, length, fin);
             tokens.push(RecoveryToken::Stream(StreamRecoveryToken::Stream(