diff --git a/cvat/apps/engine/migrations/0016_auto_20190130_1838.py b/cvat/apps/engine/migrations/0016_auto_20190130_1838.py
new file mode 100644
index 000000000000..b448348f9d8b
--- /dev/null
+++ b/cvat/apps/engine/migrations/0016_auto_20190130_1838.py
@@ -0,0 +1,30 @@
+# Generated by Django 2.1.5 on 2019-01-30 15:38
+
+import cvat.apps.engine.models
+import django.core.files.storage
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('engine', '0015_task_segment_size'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='task',
+            name='client_files',
+            field=models.FileField(blank=True, storage=django.core.files.storage.FileSystemStorage(), upload_to=cvat.apps.engine.models.upload_path_handler),
+        ),
+        migrations.AddField(
+            model_name='task',
+            name='remote_files',
+            field=models.TextField(blank=True),
+        ),
+        migrations.AddField(
+            model_name='task',
+            name='server_files',
+            field=models.TextField(blank=True),
+        ),
+    ]
diff --git a/cvat/apps/engine/models.py b/cvat/apps/engine/models.py
index 566ffa27259e..f8324b18fbdf 100644
--- a/cvat/apps/engine/models.py
+++ b/cvat/apps/engine/models.py
@@ -6,6 +6,7 @@
 from django.conf import settings
 
 from django.contrib.auth.models import User
+from django.core.files.storage import FileSystemStorage
 
 from io import StringIO
 from enum import Enum
@@ -15,6 +16,11 @@
 import re
 import os
 
+fs = FileSystemStorage()
+
+def upload_path_handler(instance, filename):
+    return os.path.join(instance.get_upload_dirname(), filename)
+
 class StatusChoice(Enum):
     ANNOTATION = 'annotation'
     VALIDATION = 'validation'
@@ -50,8 +56,14 @@ class Task(models.Model):
     segment_size = models.PositiveIntegerField()
     z_order = models.BooleanField(default=False)
     flipped = models.BooleanField(default=False)
+    # FIXME: remote source field
     source = SafeCharField(max_length=256, default="unknown")
     status = models.CharField(max_length=32, default=StatusChoice.ANNOTATION)
+    # FIXME: multiple files upload doesn't work
+    client_files = models.FileField(upload_to=upload_path_handler, storage=fs,
+        blank=True)
+    server_files = models.TextField(blank=True)
+    remote_files = models.TextField(blank=True)
 
     # Extend default permission model
     class Meta:
diff --git a/cvat/apps/engine/serializers.py b/cvat/apps/engine/serializers.py
index d553f64c7c2a..899cab63b7e5 100644
--- a/cvat/apps/engine/serializers.py
+++ b/cvat/apps/engine/serializers.py
@@ -54,14 +54,23 @@ class Meta:
 class TaskSerializer(serializers.ModelSerializer):
     labels = LabelSerializer(many=True, source='label_set')
     segments = SegmentSerializer(many=True, source='segment_set', read_only=True)
+    server_files = serializers.ListField(
+        child=serializers.CharField(max_length=1024, trim_whitespace=True)
+    )
+    remote_files = serializers.ListField(
+        child=serializers.CharField(max_length=1024)
+    )
+
 
     class Meta:
         model = Task
         fields = ('url', 'id', 'name', 'size', 'mode', 'owner', 'assignee',
             'bug_tracker', 'created_date', 'updated_date', 'overlap',
-            'segment_size', 'z_order', 'flipped', 'status', 'labels', 'segments')
+            'segment_size', 'z_order', 'flipped', 'status', 'labels', 'segments',
+            'server_files', 'client_files', 'remote_files')
         read_only_fields = ('size', 'mode', 'created_date', 'updated_date',
             'overlap', 'status', 'segment_size')
+        write_only_fields = ('server_files', 'client_files', 'remote_files')
 
     def create(self, validated_data):
         labels = validated_data.pop('labels')