diff --git a/.flake8 b/.flake8
index a70982c..213b4ea 100644
--- a/.flake8
+++ b/.flake8
@@ -1,3 +1,4 @@
 [flake8]
 max-line-length = 100
 ignore = E203, W503
+exclude = src/osipi/__init__.py
diff --git a/src/osipi/__init__.py b/src/osipi/__init__.py
index 5e3c434..2e15879 100755
--- a/src/osipi/__init__.py
+++ b/src/osipi/__init__.py
@@ -1,2 +1,2 @@
-# from ._aif import aif_georgiou, aif_parker, aif_weinmann
-# from ._tissue import extended_tofts, tofts
+from ._aif import aif_georgiou, aif_parker, aif_weinmann
+from ._tissue import extended_tofts, tofts