diff --git a/duniterpy/documents/crc_pubkey.py b/duniterpy/documents/crc_pubkey.py
index 3fd2c37148ed9db92fdcbe0e306853465311eaca..ae665d5883fd16c8190f5be72f9ae92bf0e93c36 100644
--- a/duniterpy/documents/crc_pubkey.py
+++ b/duniterpy/documents/crc_pubkey.py
@@ -38,3 +38,6 @@ class CRCPubkey:
 
     def is_valid(self):
         return CRCPubkey.from_pubkey(self.pubkey).crc == self.crc
+
+    def __str__(self):
+        return "{:}:{:}".format(self.pubkey, self.crc)
\ No newline at end of file