diff --git a/package/yast2-auth-client.changes b/package/yast2-auth-client.changes
index 0c7c9e9..a2fa28f 100644
--- a/package/yast2-auth-client.changes
+++ b/package/yast2-auth-client.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Sep 13 10:04:35 UTC 2023 - Samuel Cabrero <scabrero@suse.de>
+
+- Skip whitespace-only lines parsing krb5.conf; (bsc#1215297);
+- 3.3.21
+
 -------------------------------------------------------------------
 Tue Mar 10 10:03:54 UTC 2020 - Samuel Cabrero <scabrero@suse.de>
 
diff --git a/package/yast2-auth-client.spec b/package/yast2-auth-client.spec
index 457c21c..3112aea 100644
--- a/package/yast2-auth-client.spec
+++ b/package/yast2-auth-client.spec
@@ -17,7 +17,7 @@
 
 
 Name:           yast2-auth-client
-Version:        3.3.20
+Version:        3.3.21
 Release:        0
 Url:            https://github.com/yast/yast-auth-client
 Summary:        YaST2 - Centralised System Authentication Configuration
diff --git a/src/lib/auth/krbparse.rb b/src/lib/auth/krbparse.rb
index b1db259..f22f155 100644
--- a/src/lib/auth/krbparse.rb
+++ b/src/lib/auth/krbparse.rb
@@ -34,6 +34,11 @@ def self.parse(krb_conf_text)
                 if comment_match
                     next
                 end
+                # Skip empty lines
+                empty_match = /^\s+$/.match(line)
+                if empty_match
+                    next
+                end
                 # Remember include/includedir directives
                 include_match = /^(includedir|include|module)\s+(.+)$/.match(line)
                 if include_match
diff --git a/src/lib/authui/ldapkrb/main_dialog.rb b/src/lib/authui/ldapkrb/main_dialog.rb
index 4b1b22f..d1dced7 100644
--- a/src/lib/authui/ldapkrb/main_dialog.rb
+++ b/src/lib/authui/ldapkrb/main_dialog.rb
@@ -166,8 +166,6 @@ def ui_event_loop
                                 UI.ChangeWidget(Id(:nscd_enable), :Value, false)
                             end
                         end
-                    when :ldap_extended_opts
-                        LdapExtendedOptsDialog.new.run
 
                     # Kerberos tab events
                     when :krb_pam