diff --git a/rust/protocol/src/curve.rs b/rust/protocol/src/curve.rs
index 33e683742a..fe77243d60 100644
--- a/rust/protocol/src/curve.rs
+++ b/rust/protocol/src/curve.rs
@@ -297,6 +297,12 @@ impl TryFrom<&[u8]> for PrivateKey {
     }
 }
 
+impl fmt::Debug for PrivateKey {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "PrivateKey {{ key_type={} }}", self.key_type())
+    }
+}
+
 #[derive(Copy, Clone)]
 pub struct KeyPair {
     pub public_key: PublicKey,
diff --git a/rust/protocol/src/state/session.rs b/rust/protocol/src/state/session.rs
index 1807108894..20bd99297f 100644
--- a/rust/protocol/src/state/session.rs
+++ b/rust/protocol/src/state/session.rs
@@ -466,7 +466,7 @@ impl From<&SessionState> for SessionStructure {
     }
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone)]
 pub struct SessionRecord {
     current_session: Option<SessionState>,
     previous_sessions: Vec<Vec<u8>>,