diff --git a/changelogs/fragments/6748-icinga2_host-datafix.yml b/changelogs/fragments/6748-icinga2_host-datafix.yml
new file mode 100644
index 0000000000..2aefd55096
--- /dev/null
+++ b/changelogs/fragments/6748-icinga2_host-datafix.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - "icinga2_host - fix a key error when updating an existing host (https://github.com/ansible-collections/community.general/pull/6748)."
diff --git a/plugins/modules/icinga2_host.py b/plugins/modules/icinga2_host.py
index ce9509cbc6..c7c325ad52 100644
--- a/plugins/modules/icinga2_host.py
+++ b/plugins/modules/icinga2_host.py
@@ -306,7 +306,7 @@ def main():
                 module.exit_json(changed=False, name=name, data=data)
 
             # Template attribute is not allowed in modification
-            del data['attrs']['templates']
+            del data['templates']
 
             ret = icinga.modify(name, data)