diff --git a/@xen-orchestra/backups/_runners/_writers/_MixinXapiWriter.mjs b/@xen-orchestra/backups/_runners/_writers/_MixinXapiWriter.mjs
index aef714e4c..3efa116f5 100644
--- a/@xen-orchestra/backups/_runners/_writers/_MixinXapiWriter.mjs
+++ b/@xen-orchestra/backups/_runners/_writers/_MixinXapiWriter.mjs
@@ -58,7 +58,7 @@ export const MixinXapiWriter = (BaseClass = Object) =>
               )
             }
             const healthCheckVm = xapi.getObject(healthCheckVmRef) ?? (await xapi.waitObject(healthCheckVmRef))
-            await healthCheckVm.add_tag('xo:no-bak=Health Check')
+            await healthCheckVm.add_tags('xo:no-bak=Health Check')
             await new HealthCheckVmBackup({
               restoredVm: healthCheckVm,
               xapi,
diff --git a/CHANGELOG.unreleased.md b/CHANGELOG.unreleased.md
index 219f83655..0fa23d20a 100644
--- a/CHANGELOG.unreleased.md
+++ b/CHANGELOG.unreleased.md
@@ -16,6 +16,7 @@
 - [Proxies] Fix `this.getObject` is not a function during deployment
 - [Settings/Logs] Fix `sr.getAllUnhealthyVdiChainsLength: not enough permissions` error with non-admin users (PR [#7265](https://github.com/vatesfr/xen-orchestra/pull/7265))
 - [Settings/Logs] Fix `proxy.getAll: not enough permissions` error with non-admin users (PR [#7249](https://github.com/vatesfr/xen-orchestra/pull/7249))
+- [Replication/Health Check] Fix `healthCheckVm.add_tag is not a function` error [Forum#69156](https://xcp-ng.org/forum/post/69156)
 
 ### Packages to release
 
@@ -33,6 +34,7 @@
 
 <!--packages-start-->
 
+- @xen-orchestra/backups patch
 - xo-cli patch
 - xo-server patch
 - xo-web minor