diff --git a/libparsec/crates/client/src/invite/claimer.rs b/libparsec/crates/client/src/invite/claimer.rs
index 053ff031b1b..80cea1a95b8 100644
--- a/libparsec/crates/client/src/invite/claimer.rs
+++ b/libparsec/crates/client/src/invite/claimer.rs
@@ -46,7 +46,7 @@ pub enum ClaimInProgressError {
     ActiveUsersLimitReached,
     #[error("The provided user is not allowed to greet this invitation")]
     GreeterNotAllowed,
-    #[error("Greeting attempt cancelled by {origin:?} because {reason:?} on {timestamp}")]
+    #[error("Greeting attempt cancelled by {origin} because of {reason} on {timestamp}")]
     GreetingAttemptCancelled {
         origin: GreeterOrClaimer,
         reason: CancelledGreetingAttemptReason,
diff --git a/libparsec/crates/types/src/invite.rs b/libparsec/crates/types/src/invite.rs
index 188609d48e0..1c38b2b593f 100644
--- a/libparsec/crates/types/src/invite.rs
+++ b/libparsec/crates/types/src/invite.rs
@@ -108,8 +108,8 @@ impl FromStr for GreeterOrClaimer {
 impl Display for GreeterOrClaimer {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Self::Greeter => write!(f, "GREETER"),
-            Self::Claimer => write!(f, "CLAIMER"),
+            Self::Greeter => write!(f, "greeter"),
+            Self::Claimer => write!(f, "claimer"),
         }
     }
 }
@@ -168,13 +168,13 @@ impl FromStr for CancelledGreetingAttemptReason {
 impl std::fmt::Display for CancelledGreetingAttemptReason {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         match self {
-            Self::ManuallyCancelled => write!(f, "MANUALLY_CANCELLED"),
-            Self::InvalidNonceHash => write!(f, "INVALID_NONCE_HASH"),
-            Self::InvalidSasCode => write!(f, "INVALID_SAS_CODE"),
-            Self::UndecipherablePayload => write!(f, "UNDECIPHERABLE_PAYLOAD"),
-            Self::UndeserializablePayload => write!(f, "UNDESERIALIZABLE_PAYLOAD"),
-            Self::InconsistentPayload => write!(f, "INCONSISTENT_PAYLOAD"),
-            Self::AutomaticallyCancelled => write!(f, "AUTOMATICALLY_CANCELLED"),
+            Self::ManuallyCancelled => write!(f, "manually cancelled"),
+            Self::InvalidNonceHash => write!(f, "invalid nonce hash"),
+            Self::InvalidSasCode => write!(f, "invalid sas code"),
+            Self::UndecipherablePayload => write!(f, "undecipherable payload"),
+            Self::UndeserializablePayload => write!(f, "undeserializable payload"),
+            Self::InconsistentPayload => write!(f, "inconsistent payload"),
+            Self::AutomaticallyCancelled => write!(f, "automatically cancelled"),
         }
     }
 }