diff --git a/advanced/databases/livedet-iris-2020/1.json b/advanced/databases/livedet_iris_2020/1.json
similarity index 100%
rename from advanced/databases/livedet-iris-2020/1.json
rename to advanced/databases/livedet_iris_2020/1.json
diff --git a/advanced/databases/livedet-iris-2020/1.py b/advanced/databases/livedet_iris_2020/1.py
similarity index 100%
rename from advanced/databases/livedet-iris-2020/1.py
rename to advanced/databases/livedet_iris_2020/1.py