diff --git a/bitcoin/src/blockdata/constants.rs b/bitcoin/src/blockdata/constants.rs
index 01d8238c..7a737d38 100644
--- a/bitcoin/src/blockdata/constants.rs
+++ b/bitcoin/src/blockdata/constants.rs
@@ -185,6 +185,11 @@ impl ChainHash {
         let hashes = [Self::BITCOIN, Self::TESTNET, Self::SIGNET, Self::REGTEST];
         hashes[network as usize]
     }
+
+    /// Converts genesis block hash into `ChainHash`.
+    pub fn from_genesis_block_hash(block_hash: crate::BlockHash) -> Self {
+        ChainHash(block_hash.to_byte_array())
+    }
 }
 
 #[cfg(test)]