diff --git a/addons/api/addon/models/target.js b/addons/api/addon/models/target.js
index e9d3ac018..99e1f3d16 100644
--- a/addons/api/addon/models/target.js
+++ b/addons/api/addon/models/target.js
@@ -32,14 +32,15 @@ export default class TargetModel extends GeneratedTargetModel {
   /**
    * Adds host sets via the `add-host-sets` method.
    * See serializer and adapter for more information.
+   * @param {[string]} hostSetIDs
    * @param {object} options
    * @param {object} options.adapterOptions
    * @return {Promise}
    */
-  addHostSets(hostSets, options={ adapterOptions: {} }) {
+  addHostSets(hostSetIDs, options={ adapterOptions: {} }) {
     const defaultAdapterOptions = {
       method: 'add-host-sets',
-      hostSets
+      hostSetIDs
     };
     // There is no "deep merge" in ES.
     // All of this nonsense is here to ensure we get
@@ -56,14 +57,15 @@ export default class TargetModel extends GeneratedTargetModel {
   /**
    * Delete host sets via the `delete-host-sets` method.
    * See serializer and adapter for more information.
+   * @param {[string]} hostSetIDs
    * @param {object} options
    * @param {object} options.adapterOptions
    * @return {Promise}
    */
-  deleteHostSets(hostSets, options={ adapterOptions: {} }) {
+  deleteHostSets(hostSetIDs, options={ adapterOptions: {} }) {
     const defaultAdapterOptions = {
       method: 'delete-host-sets',
-      hostSets
+      hostSetIDs
     };
     // There is no "deep merge" in ES.
     // All of this nonsense is here to ensure we get
diff --git a/addons/api/addon/serializers/target.js b/addons/api/addon/serializers/target.js
index 5d45fec4d..7fc436df5 100644
--- a/addons/api/addon/serializers/target.js
+++ b/addons/api/addon/serializers/target.js
@@ -14,22 +14,23 @@ export default class TargetSerializer extends ApplicationSerializer {
    */
   serialize(snapshot) {
     let serialized = super.serialize(...arguments);
-    const hostSets = snapshot?.adapterOptions?.hostSets;
-    if (hostSets) serialized = this.serializeWithHostSets(snapshot, hostSets);
+    const hostSets = snapshot?.adapterOptions?.hostSetIDs;
+    if (hostSetIDs) serialized =
+      this.serializeWithHostSets(snapshot, hostSetIDs);
     return serialized;
   }
 
   /**
-   * Returns a payload containing only the host_set_ids array using host sets
+   * Returns a payload containing only the host_set_ids array using IDs
    * passed into the function (rather than existing host sets on the model).
    * @param {Snapshot} snapshot
-   * @param {[HostSetModel]} hostSets
+   * @param {[string]} hostSetIDs
    * @return {object}
    */
-  serializeWithHostSets(snapshot, hostSets) {
+  serializeWithHostSets(snapshot, hostSetIDs) {
     return {
       version: snapshot.attr('version'),
-      host_set_ids: hostSets.map(({ id }) => id)
+      host_set_ids: hostSetIDs
     };
   }