diff --git a/zebra-chain/src/parameters/network/testnet.rs b/zebra-chain/src/parameters/network/testnet.rs
index 25282cd20..1533d7f83 100644
--- a/zebra-chain/src/parameters/network/testnet.rs
+++ b/zebra-chain/src/parameters/network/testnet.rs
@@ -27,7 +27,7 @@ pub const MAX_NETWORK_NAME_LENGTH: usize = 30;
 /// Maximum length for a configured human-readable prefix.
 pub const MAX_HRP_LENGTH: usize = 30;
 
-/// The block hash of the Testnet genesis block, `zcash-cli -regtest getblockhash 0`
+/// The block hash of the Regtest genesis block, `zcash-cli -regtest getblockhash 0`
 const REGTEST_GENESIS_HASH: &str =
     "029f11d80ef9765602235e1bc9727e3eb6ba20839319f761fee920d63401e327";
 
@@ -161,7 +161,7 @@ impl ParametersBuilder {
         self
     }
 
-    /// Parses a hex-encoded block hash and sets the genesis hash to be used in the [`Parameters`] being built.
+    /// Parses the hex-encoded block hash and sets it as the genesis hash in the [`Parameters`] being built.
     pub fn with_genesis_hash(mut self, genesis_hash: impl fmt::Display) -> Self {
         self.genesis_hash = genesis_hash
             .to_string()
diff --git a/zebra-chain/src/work/equihash.rs b/zebra-chain/src/work/equihash.rs
index 1d8a4753a..20d4ed1a3 100644
--- a/zebra-chain/src/work/equihash.rs
+++ b/zebra-chain/src/work/equihash.rs
@@ -34,9 +34,9 @@ pub(crate) const REGTEST_SOLUTION_SIZE: usize = 36;
 
 /// Equihash Solution in compressed format.
 ///
-/// A wrapper around [u8; 1344] because Rust doesn't implement common
-/// traits like `Debug`, `Clone`, etc for collections like array
-/// beyond lengths 0 to 32.
+/// A wrapper around `[u8; n]` where `n` is the solution size because
+/// Rust doesn't implement common traits like `Debug`, `Clone`, etc.
+/// for collections like arrays beyond lengths 0 to 32.
 ///
 /// The size of an Equihash solution in bytes is always 1344 on Mainnet and Testnet, and
 /// is always 36 on Regtest so the length of this type is fixed.