diff --git a/neqo-crypto/src/constants.rs b/neqo-crypto/src/constants.rs
index b349059407..a7c663db72 100644
--- a/neqo-crypto/src/constants.rs
+++ b/neqo-crypto/src/constants.rs
@@ -52,17 +52,6 @@ impl From<Epoch> for usize {
     }
 }
 
-impl std::fmt::Display for Epoch {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        match self {
-            Self::Initial => write!(f, "Initial"),
-            Self::ZeroRtt => write!(f, "ZeroRtt"),
-            Self::Handshake => write!(f, "Handshake"),
-            Self::ApplicationData => write!(f, "ApplicationData"),
-        }
-    }
-}
-
 /// Rather than defining a type alias and a bunch of constants, which leads to a ton of repetition,
 /// use this macro.
 macro_rules! remap_enum {
diff --git a/neqo-transport/src/crypto.rs b/neqo-transport/src/crypto.rs
index 76db1fdad2..f890d2156a 100644
--- a/neqo-transport/src/crypto.rs
+++ b/neqo-transport/src/crypto.rs
@@ -448,7 +448,7 @@ impl CryptoDxState {
         cipher: Cipher,
     ) -> Res<Self> {
         qdebug!(
-            "Making {:?} {} CryptoDxState, v={:?} cipher={}",
+            "Making {:?} {:?} CryptoDxState, v={:?} cipher={}",
             direction,
             epoch,
             version,