diff --git a/__init__.py b/__init__.py
index 118ba306b..330fd6d86 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,3 +1,5 @@
 import os
 import sys
 sys.setdlopenflags(os.RTLD_NOW | os.RTLD_GLOBAL)
+
+__all__ = ["libyosys"]