diff --git a/app/Models/StandaloneMariadb.php b/app/Models/StandaloneMariadb.php
index 3c3ea6d39..5a8869b41 100644
--- a/app/Models/StandaloneMariadb.php
+++ b/app/Models/StandaloneMariadb.php
@@ -4,6 +4,7 @@
 
 use Illuminate\Database\Eloquent\Casts\Attribute;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 class StandaloneMariadb extends BaseModel
@@ -253,7 +254,7 @@ public function fileStorages()
         return $this->morphMany(LocalFileVolume::class, 'resource');
     }
 
-    public function destination()
+    public function destination(): MorphTo
     {
         return $this->morphTo();
     }