diff --git a/attestation-service/src/lib.rs b/attestation-service/src/lib.rs
index f987b4305..7307ac77a 100644
--- a/attestation-service/src/lib.rs
+++ b/attestation-service/src/lib.rs
@@ -154,19 +154,19 @@ impl AttestationService {
     /// Evaluate Attestation Evidence.
     /// Issue an attestation results token which contain TCB status and TEE public key. Input parameters:
     /// - `evidence`: TEE evidence bytes. This might not be the raw hardware evidence bytes. Definitions
-    /// are in `verifier` crate.
+    ///   are in `verifier` crate.
     /// - `tee`: concrete TEE type
     /// - `runtime_data`: These data field will be used to check against the counterpart inside the evidence.
-    /// The concrete way of checking is decide by the enum type. If this parameter is set `None`, the comparation
-    /// will not be performed.
+    ///   The concrete way of checking is decide by the enum type. If this parameter is set `None`, the comparation
+    ///   will not be performed.
     /// - `init_data`: These data field will be used to check against the counterpart inside the evidence.
-    /// The concrete way of checking is decide by the enum type. If this parameter is set `None`, the comparation
-    /// will not be performed.
+    ///   The concrete way of checking is decide by the enum type. If this parameter is set `None`, the comparation
+    ///   will not be performed.
     /// - `hash_algorithm`: The hash algorithm that is used to calculate the digest of `runtime_data` and
-    /// `init_data`.
+    ///   `init_data`.
     /// - `policy_ids`: The policy ids that used to check this evidence. Any check fails against a policy will
-    /// not cause this function to return error. The result check against every policy will be included inside
-    /// the finally Token returned by CoCo-AS.
+    ///   not cause this function to return error. The result check against every policy will be included inside
+    ///   the finally Token returned by CoCo-AS.
     #[allow(clippy::too_many_arguments)]
     pub async fn evaluate(
         &self,
diff --git a/rvps/src/reference_value.rs b/rvps/src/reference_value.rs
index f644cce72..4e5877649 100644
--- a/rvps/src/reference_value.rs
+++ b/rvps/src/reference_value.rs
@@ -55,10 +55,10 @@ fn primitive_date_time_from_str<'de, D: Deserializer<'de>>(
 /// * `name`: name of the artifact related to this reference value.
 /// * `expired`: expired time for this reference value.
 /// * `hash_value`: A set of key-value pairs, each indicates a hash
-/// algorithm and its relative hash value for the artifact.
-/// The actual struct deliver from RVPS to AS is
-/// [`TrustedDigest`], whose simple structure is easy
-/// for AS to handle.
+///   algorithm and its relative hash value for the artifact.
+///   The actual struct deliver from RVPS to AS is
+///   [`TrustedDigest`], whose simple structure is easy
+///   for AS to handle.
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq)]
 pub struct ReferenceValue {
     #[serde(default = "default_version")]
@@ -140,7 +140,7 @@ impl ReferenceValue {
 /// AS, it will include:
 /// * `name`: The name of the artifact, e.g., `linux-1.1.1`
 /// * `hash_values`: digests that have been verified and can
-/// be trusted, so we can refer them as `trusted digests`.
+///   be trusted, so we can refer them as `trusted digests`.
 #[derive(Serialize, Deserialize, Clone, Default, Debug, PartialEq, Eq)]
 pub struct TrustedDigest {
     /// The resource name.