diff --git a/btc-address/src/main.rs b/btc-address/src/main.rs
index 7ebfed6..a059d45 100644
--- a/btc-address/src/main.rs
+++ b/btc-address/src/main.rs
@@ -63,8 +63,8 @@ fn make_btc_address(public_key: &PublicKey) -> String {
     btc_addr.push(0x00 as u8);
     btc_addr.extend_from_slice(&riphemd160_sha256_pub_key);
 
-    let chcksum = &calc_sha256(&calc_sha256(&btc_addr))[0..4];
-    btc_addr.extend_from_slice(chcksum);
+    let checksum = &calc_sha256(&calc_sha256(&btc_addr))[0..4];
+    btc_addr.extend_from_slice(checksum);
 
     bs58::encode(&btc_addr).into_string()
 }