diff --git a/crc/models/file.py b/crc/models/file.py
index f52b499d..6379f22d 100644
--- a/crc/models/file.py
+++ b/crc/models/file.py
@@ -69,6 +69,7 @@ class FileDataModel(db.Model):
     date_created = db.Column(db.DateTime(timezone=True), server_default=func.now())
     file_model_id = db.Column(db.Integer, db.ForeignKey('file.id'))
     file_model = db.relationship("FileModel", foreign_keys=[file_model_id])
+    user_uid = db.Column(db.String, db.ForeignKey('user.uid'), nullable=True)
 
 
 
diff --git a/migrations/versions/30e017a03948_.py b/migrations/versions/30e017a03948_.py
new file mode 100644
index 00000000..248b3db4
--- /dev/null
+++ b/migrations/versions/30e017a03948_.py
@@ -0,0 +1,27 @@
+"""add user_uid column to file_data table
+
+Revision ID: 30e017a03948
+Revises: bbf064082623
+Create Date: 2021-07-06 10:39:04.661704
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '30e017a03948'
+down_revision = 'bbf064082623'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.add_column('file_data', sa.Column('user_uid', sa.String(), nullable=True))
+    op.create_foreign_key(None, 'file_data', 'user', ['user_uid'], ['uid'])
+
+
+def downgrade():
+    # op.drop_constraint('file_data_user_uid_fkey', 'file_data', type_='foreignkey')
+    # op.execute("update file_data set user_uid = NULL WHERE user_uid IS NOT NULL")
+    op.drop_column('file_data', 'user_uid')