diff --git a/src/topupopt/problems/__init__.py b/src/topupopt/problems/__init__.py
index 80cf2ba9bd7b049c85c1ff82e75ab35967c5e803..7c68785e9d0b64e1fe46403c4316a9fe1ea36eeb 100644
--- a/src/topupopt/problems/__init__.py
+++ b/src/topupopt/problems/__init__.py
@@ -1,2 +1 @@
-# -*- coding: utf-8 -*-
-# from . import mvesipp
+# -*- coding: utf-8 -*-
\ No newline at end of file
diff --git a/src/topupopt/problems/esipp/blocks/__init__.py b/src/topupopt/problems/esipp/blocks/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..7c68785e9d0b64e1fe46403c4316a9fe1ea36eeb
--- /dev/null
+++ b/src/topupopt/problems/esipp/blocks/__init__.py
@@ -0,0 +1 @@
+# -*- coding: utf-8 -*-
\ No newline at end of file