diff --git a/packages/controller/src/ControlConnection.js b/packages/controller/src/ControlConnection.js
index 29db241b..de792ba5 100644
--- a/packages/controller/src/ControlConnection.js
+++ b/packages/controller/src/ControlConnection.js
@@ -187,7 +187,7 @@ class ControlConnection extends BaseConnection {
 		let list = [];
 		for (let instance of this._controller.instances.values()) {
 			list.push({
-				id: instance.config.get("instance.id"),
+				id: instance.id,
 				name: instance.config.get("instance.name"),
 				assigned_host: instance.config.get("instance.assigned_host"),
 				game_port: instance.game_port || null,
@@ -204,10 +204,10 @@ class ControlConnection extends BaseConnection {
 	instanceUpdated(instance) {
 		if (
 			this.instanceSubscriptions.all
-			|| this.instanceSubscriptions.instance_ids.includes(instance.config.get("instance.id"))
+			|| this.instanceSubscriptions.instance_ids.includes(instance.id)
 		) {
 			libLink.messages.instanceUpdate.send(this, {
-				id: instance.config.get("instance.id"),
+				id: instance.id,
 				name: instance.config.get("instance.name"),
 				assigned_host: instance.config.get("instance.assigned_host"),
 				game_port: instance.game_port || null,
diff --git a/packages/controller/src/Controller.js b/packages/controller/src/Controller.js
index 556d0715..1da93e12 100644
--- a/packages/controller/src/Controller.js
+++ b/packages/controller/src/Controller.js
@@ -734,7 +734,7 @@ class Controller {
 			let connection = this.wsServer.hostConnections.get(hostId);
 			if (connection) {
 				await libLink.messages.assignInstance.send(connection, {
-					instance_id: instance.config.get("instance.id"),
+					instance_id: instance.id,
 					serialized_config: instance.config.serialize("host"),
 				});
 			}
diff --git a/packages/controller/src/HostConnection.js b/packages/controller/src/HostConnection.js
index 7cccaee8..c37830a8 100644
--- a/packages/controller/src/HostConnection.js
+++ b/packages/controller/src/HostConnection.js
@@ -126,7 +126,7 @@ class HostConnection extends BaseConnection {
 		for (let instance of this._controller.instances.values()) {
 			if (instance.config.get("instance.assigned_host") === this._id) {
 				await libLink.messages.assignInstance.send(this, {
-					instance_id: instance.config.get("instance.id"),
+					instance_id: instance.id,
 					serialized_config: instance.config.serialize("host"),
 				});
 			}
@@ -142,7 +142,7 @@ class HostConnection extends BaseConnection {
 				// Check if this instance is assigned somewhere else.
 				if (controllerInstance.config.get("instance.assigned_host") !== this._id) {
 					await libLink.messages.unassignInstance.send(this, {
-						instance_id: controllerInstance.config.get("instance.id"),
+						instance_id: controllerInstance.id,
 					});
 					continue;
 				}
diff --git a/packages/controller/src/InstanceInfo.js b/packages/controller/src/InstanceInfo.js
index da71ce2a..090f00e5 100644
--- a/packages/controller/src/InstanceInfo.js
+++ b/packages/controller/src/InstanceInfo.js
@@ -39,6 +39,11 @@ class InstanceInfo {
 			status: this.status,
 		};
 	}
+
+	/** Shorthand for `instance.config.get("instance.id")` @type {number} */
+	get id() {
+		return this.config.get("instance.id");
+	}
 }
 
 module.exports = InstanceInfo;
diff --git a/plugins/inventory_sync/controller.js b/plugins/inventory_sync/controller.js
index 491d102f..ce4179a9 100644
--- a/plugins/inventory_sync/controller.js
+++ b/plugins/inventory_sync/controller.js
@@ -42,7 +42,7 @@ class ControllerPlugin extends libPlugin.BaseControllerPlugin {
 	}
 
 	async onInstanceStatusChanged(instance) {
-		let instanceId = instance.config.get("instance.id");
+		let instanceId = instance.id;
 		if (["unassigned", "deleted"].includes(instance.status)) {
 			for (let [playerName, acquisitionRecord] of this.acquiredPlayers) {
 				if (acquisitionRecord.instanceId === instanceId) {