diff --git a/src/kike.c b/src/kike.c
index 3202333..dde8d42 100644
--- a/src/kike.c
+++ b/src/kike.c
@@ -227,7 +227,7 @@ irc_is_valid_key (const char *key)
 static bool
 irc_is_valid_fingerprint (const char *fp)
 {
-	return irc_regex_match ("^[a-fA-F0-9]{2}(:[a-fA-F0-9]{2}){20}$", fp);
+	return irc_regex_match ("^[a-fA-F0-9]{2}(:[a-fA-F0-9]{2}){19}$", fp);
 }
 
 // --- Application data --------------------------------------------------------
@@ -798,7 +798,7 @@ client_get_ssl_cert_fingerprint (struct client *c)
 	struct str fingerprint;
 	str_init (&fingerprint);
 	str_append_printf (&fingerprint, "%02X", hash[0]);
-	for (size_t i = 0; i < sizeof hash; i++)
+	for (size_t i = 1; i < sizeof hash; i++)
 		str_append_printf (&fingerprint, ":%02X", hash[i]);
 	return str_steal (&fingerprint);
 }