1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index ef1eef6b69..800235a302 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -572,7 +572,7 @@ module ActiveRecord
           end
         end
 
-        # See https://dev.mysql.com/doc/refman/5.7/en/error-messages-server.html
+        # See https://dev.mysql.com/doc/refman/5.7/en/server-error-reference.html
         ER_DUP_ENTRY            = 1062
         ER_NOT_NULL_VIOLATION   = 1048
         ER_NO_REFERENCED_ROW    = 1216