diff --git a/ostp-core/src/protocol.rs b/ostp-core/src/protocol.rs
index 581e1b1..e9a0de5 100644
--- a/ostp-core/src/protocol.rs
+++ b/ostp-core/src/protocol.rs
@@ -243,7 +243,9 @@ impl ProtocolMachine {
             tracing::info!("handle_inbound: raw_vec.len()={}, noise_len={}, raw_vec[0..6]={:?}", raw_vec.len(), noise_len, &raw_vec[0..6]);
             
             let mut read_out = vec![0_u8; 1024];
-            let n = self.noise.read_handshake(&raw_vec[6..6 + noise_len], &mut read_out)?;
+            let n = self.noise.read_handshake(&raw_vec[6..6 + noise_len], &mut read_out).map_err(|e| {
+                ProtocolError::Crypto(format!("noise-read: {:?} (raw_len={}, noise_len={})", e, raw_vec.len(), noise_len))
+            })?;
             read_out.truncate(n);
 
             let response = match self.role {