diff --git a/app/Http/Controllers/Api/AssetsController.php b/app/Http/Controllers/Api/AssetsController.php
index dd375d0823..2ac2df3da4 100644
--- a/app/Http/Controllers/Api/AssetsController.php
+++ b/app/Http/Controllers/Api/AssetsController.php
@@ -94,6 +94,7 @@ class AssetsController extends Controller
             'serial',
             'model_number',
             'last_checkout',
+            'last_checkin',
             'notes',
             'expected_checkin',
             'order_number',
diff --git a/app/Models/Asset.php b/app/Models/Asset.php
index 2830eca7e5..1f4079e491 100644
--- a/app/Models/Asset.php
+++ b/app/Models/Asset.php
@@ -96,6 +96,7 @@ class Asset extends Depreciable
         'company_id'       => 'nullable|integer|exists:companies,id',
         'warranty_months'  => 'nullable|numeric|digits_between:0,240',
         'last_checkout'    => 'nullable|date_format:Y-m-d H:i:s',
+        'last_checkin'     => 'nullable|date_format:Y-m-d H:i:s',
         'expected_checkin' => 'nullable|date',
         'last_audit_date'  => 'nullable|date_format:Y-m-d H:i:s',
         'next_audit_date'  => 'nullable|date|after:last_audit_date',
@@ -169,6 +170,8 @@ class Asset extends Depreciable
       'expected_checkin', 
       'next_audit_date', 
       'last_audit_date',
+      'last_checkin',
+      'last_checkout',
       'asset_eol_date',
     ];