diff --git a/changelogs/fragments/6905-ipa_dnszone-key-error-fix.yml b/changelogs/fragments/6905-ipa_dnszone-key-error-fix.yml
new file mode 100644
index 0000000000..d7ce19d8b9
--- /dev/null
+++ b/changelogs/fragments/6905-ipa_dnszone-key-error-fix.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - ipa_dnszone - fix 'idnsallowsyncptr' key error for reverse zone (https://github.com/ansible-collections/community.general/pull/6906, https://github.com/ansible-collections/community.general/issues/6905).
diff --git a/plugins/modules/ipa_dnszone.py b/plugins/modules/ipa_dnszone.py
index 06c93841ea..6699b0525b 100644
--- a/plugins/modules/ipa_dnszone.py
+++ b/plugins/modules/ipa_dnszone.py
@@ -152,7 +152,8 @@ def ensure(module, client):
             changed = True
             if not module.check_mode:
                 client.dnszone_add(zone_name=zone_name, details={'idnsallowdynupdate': dynamicupdate, 'idnsallowsyncptr': allowsyncptr})
-        elif ipa_dnszone['idnsallowdynupdate'][0] != str(dynamicupdate).upper() or ipa_dnszone['idnsallowsyncptr'][0] != str(allowsyncptr).upper():
+        elif ipa_dnszone['idnsallowdynupdate'][0] != str(dynamicupdate).upper() or \
+                ipa_dnszone.get('idnsallowsyncptr') and ipa_dnszone['idnsallowsyncptr'][0] != str(allowsyncptr).upper():
             changed = True
             if not module.check_mode:
                 client.dnszone_mod(zone_name=zone_name, details={'idnsallowdynupdate': dynamicupdate, 'idnsallowsyncptr': allowsyncptr})