diff --git a/pydaptivefiltering/__init__.py b/pydaptivefiltering/__init__.py
index 9b3233c..fbd3c8e 100644
--- a/pydaptivefiltering/__init__.py
+++ b/pydaptivefiltering/__init__.py
@@ -1,3 +1,4 @@
 from pydaptivefiltering.main import AdaptiveFilter
 from pydaptivefiltering import LMS
+from pydaptivefiltering import SM
 from pydaptivefiltering import RLS