diff --git a/bindings/matrix-sdk-ffi/src/error.rs b/bindings/matrix-sdk-ffi/src/error.rs
index c880a961aad..39f2ebf3b88 100644
--- a/bindings/matrix-sdk-ffi/src/error.rs
+++ b/bindings/matrix-sdk-ffi/src/error.rs
@@ -135,19 +135,18 @@ pub enum MediaInfoError {
 }
 
 #[derive(Debug, thiserror::Error, uniffi::Error)]
-#[uniffi(flat_error)]
 pub enum NotificationSettingsError {
     #[error("client error: {msg}")]
     Generic { msg: String },
     /// Invalid parameter.
-    #[error("Invalid parameter `{0}`")]
-    InvalidParameter(String),
+    #[error("Invalid parameter: {msg}")]
+    InvalidParameter { msg: String },
     /// Invalid room id.
-    #[error("Invalid room ID `{0}`")]
-    InvalidRoomId(String),
+    #[error("Invalid room ID {room_id}")]
+    InvalidRoomId { room_id: String },
     /// Rule not found
-    #[error("Rule not found")]
-    RuleNotFound(String),
+    #[error("Rule not found: {rule_id}")]
+    RuleNotFound { rule_id: String },
     /// Unable to add push rule.
     #[error("Unable to add push rule")]
     UnableToAddPushRule,
@@ -165,13 +164,11 @@ pub enum NotificationSettingsError {
 impl From<SdkNotificationSettingsError> for NotificationSettingsError {
     fn from(value: SdkNotificationSettingsError) -> Self {
         match value {
-            SdkNotificationSettingsError::RuleNotFound(rule_id) => Self::RuleNotFound(rule_id),
+            SdkNotificationSettingsError::RuleNotFound(rule_id) => Self::RuleNotFound { rule_id },
             SdkNotificationSettingsError::UnableToAddPushRule => Self::UnableToAddPushRule,
             SdkNotificationSettingsError::UnableToRemovePushRule => Self::UnableToRemovePushRule,
             SdkNotificationSettingsError::UnableToSavePushRules => Self::UnableToSavePushRules,
-            SdkNotificationSettingsError::InvalidParameter(parameter) => {
-                Self::InvalidParameter(parameter)
-            }
+            SdkNotificationSettingsError::InvalidParameter(msg) => Self::InvalidParameter { msg },
             SdkNotificationSettingsError::UnableToUpdatePushRule => Self::UnableToUpdatePushRule,
         }
     }
diff --git a/bindings/matrix-sdk-ffi/src/notification_settings.rs b/bindings/matrix-sdk-ffi/src/notification_settings.rs
index 159aed25546..239031aaa06 100644
--- a/bindings/matrix-sdk-ffi/src/notification_settings.rs
+++ b/bindings/matrix-sdk-ffi/src/notification_settings.rs
@@ -145,7 +145,7 @@ impl NotificationSettings {
     ) -> Result<RoomNotificationSettings, NotificationSettingsError> {
         let notification_settings = self.sdk_notification_settings.read().await;
         let parsed_room_id = RoomId::parse(&room_id)
-            .map_err(|_e| NotificationSettingsError::InvalidRoomId(room_id))?;
+            .map_err(|_e| NotificationSettingsError::InvalidRoomId { room_id })?;
         // Get the current user defined mode for this room
         if let Some(mode) =
             notification_settings.get_user_defined_room_notification_mode(&parsed_room_id).await
@@ -180,7 +180,7 @@ impl NotificationSettings {
     ) -> Result<(), NotificationSettingsError> {
         let notification_settings = self.sdk_notification_settings.read().await;
         let parsed_room_id = RoomId::parse(&room_id)
-            .map_err(|_e| NotificationSettingsError::InvalidRoomId(room_id))?;
+            .map_err(|_e| NotificationSettingsError::InvalidRoomId { room_id })?;
         notification_settings.set_room_notification_mode(&parsed_room_id, mode.into()).await?;
         Ok(())
     }
@@ -200,7 +200,7 @@ impl NotificationSettings {
     ) -> Result<Option<RoomNotificationMode>, NotificationSettingsError> {
         let notification_settings = self.sdk_notification_settings.read().await;
         let parsed_room_id = RoomId::parse(&room_id)
-            .map_err(|_e| NotificationSettingsError::InvalidRoomId(room_id))?;
+            .map_err(|_e| NotificationSettingsError::InvalidRoomId { room_id })?;
         // Get the current user defined mode for this room
         if let Some(mode) =
             notification_settings.get_user_defined_room_notification_mode(&parsed_room_id).await
@@ -293,7 +293,7 @@ impl NotificationSettings {
     ) -> Result<(), NotificationSettingsError> {
         let notification_settings = self.sdk_notification_settings.read().await;
         let parsed_room_id = RoomId::parse(&room_id)
-            .map_err(|_e| NotificationSettingsError::InvalidRoomId(room_id))?;
+            .map_err(|_e| NotificationSettingsError::InvalidRoomId { room_id })?;
         notification_settings.delete_user_defined_room_rules(&parsed_room_id).await?;
         Ok(())
     }
@@ -459,7 +459,7 @@ impl NotificationSettings {
     ) -> Result<(), NotificationSettingsError> {
         let notification_settings = self.sdk_notification_settings.read().await;
         let parsed_room_id = RoomId::parse(&room_id)
-            .map_err(|_e| NotificationSettingsError::InvalidRoomId(room_id))?;
+            .map_err(|_e| NotificationSettingsError::InvalidRoomId { room_id })?;
         notification_settings
             .unmute_room(&parsed_room_id, is_encrypted.into(), is_one_to_one.into())
             .await?;