diff --git a/t4_devkit/schema/tables/sample_data.py b/t4_devkit/schema/tables/sample_data.py
index 1117d65..76b786a 100644
--- a/t4_devkit/schema/tables/sample_data.py
+++ b/t4_devkit/schema/tables/sample_data.py
@@ -84,6 +84,7 @@ class SampleData(SchemaBase):
         prev (str): Foreign key pointing the sample_data that precedes this in time.
             Empty if start of scene.
         is_valid (bool): True if this data is valid, else False. Invalid data should be ignored.
+        info_filename (str): Relative path to metainfo data-blob on disk.
 
     Shortcuts:
     ---------
@@ -103,6 +104,9 @@ class SampleData(SchemaBase):
     next: str = field(validator=validators.instance_of(str))  # noqa: A003
     prev: str = field(validator=validators.instance_of(str))
     is_valid: bool = field(default=True, validator=validators.instance_of(bool))
+    info_filename: str | None = field(
+        default=None, validator=validators.optional(validators.instance_of(str))
+    )
 
     # shortcuts
     modality: SensorModality | None = field(init=False, default=None)
diff --git a/tests/schema/conftest.py b/tests/schema/conftest.py
index 8c9a70e..c9c6581 100644
--- a/tests/schema/conftest.py
+++ b/tests/schema/conftest.py
@@ -221,6 +221,7 @@ def sample_data_dict() -> dict:
         "ego_pose_token": "d6779d73ac9c5a1f3f372aa182bc8158",
         "calibrated_sensor_token": "0c434d5a27ef0404331549435b9861e4",
         "filename": "data/camera/0.jpg",
+        "info_filename": "",
         "fileformat": "jpg",
         "width": 1440,
         "height": 1080,