diff --git a/lib/btcruby/address.rb b/lib/btcruby/address.rb
index 1c25859..f825548 100644
--- a/lib/btcruby/address.rb
+++ b/lib/btcruby/address.rb
@@ -21,7 +21,7 @@
 #
 #      address = BTC::PublicKeyAddress.new(hash: hash)
 #
-# 3. To convert address to its Base68Check format call to_s:
+# 3. To convert address to its Base58Check format call to_s:
 #
 #      string = address.to_s
 #