diff --git a/jc/parsers/x509_cert.py b/jc/parsers/x509_cert.py
index ef7187d9..790122d2 100644
--- a/jc/parsers/x509_cert.py
+++ b/jc/parsers/x509_cert.py
@@ -150,7 +150,7 @@ Schema:
           ]
         }
 
-        Signed Certificate Timestamp List
+        Signed Certificate Timestamp List:
         {
           "extn_id":                    "signed_certificate_timestamp_list",
           "critical":                   boolean,