diff --git a/monero/address.py b/monero/address.py
index d8321bc..5f23d83 100644
--- a/monero/address.py
+++ b/monero/address.py
@@ -19,7 +19,7 @@ class BaseAddress(object):
     def __init__(self, addr, label=None):
         addr = addr.decode() if isinstance(addr, bytes) else str(addr)
         if not _ADDR_REGEX.match(addr):
-            raise ValueError("Address must be 95 characters long base58-encoded string, "
+            raise ValueError("Address must be 97 characters long base58-encoded string, "
                 "is {addr} ({len} chars length)".format(addr=addr, len=len(addr)))
         self._decode(addr)
         self.label = label or self.label
@@ -210,5 +210,5 @@ def address(addr, label=None):
                 sorted(Address._valid_netbytes + SubAddress._valid_netbytes)))))
     elif _IADDR_REGEX.match(addr):
         return IntegratedAddress(addr)
-    raise ValueError("Address must be either 95 or 106 characters long base58-encoded string, "
+    raise ValueError("Address must be either 97 or 108 characters long base58-encoded string, "
         "is {addr} ({len} chars length)".format(addr=addr, len=len(addr)))
diff --git a/monero/seed.py b/monero/seed.py
index 13be40a..1b4efa5 100644
--- a/monero/seed.py
+++ b/monero/seed.py
@@ -173,7 +173,7 @@ class Seed(object):
         h = keccak_256()
         h.update(unhexlify(data))
         checksum = h.hexdigest()
-        return address(base58.encode(data + checksum[0:10]))
+        return address(base58.encode(data + checksum[0:8]))
 
 
 def generate_hex(n_bytes=32):