diff --git a/lib/__pycache__/cmmde_hubbard.cpython-310.pyc b/lib/__pycache__/cmmde_hubbard.cpython-310.pyc
index e57184f..a8b613b 100644
Binary files a/lib/__pycache__/cmmde_hubbard.cpython-310.pyc and b/lib/__pycache__/cmmde_hubbard.cpython-310.pyc differ
diff --git a/lib/cmmde_hubbard.py b/lib/cmmde_hubbard.py
index 406ab7d..db51236 100644
--- a/lib/cmmde_hubbard.py
+++ b/lib/cmmde_hubbard.py
@@ -23,7 +23,8 @@ def azimuth(element):
     'Ni' : '3',
     'Co' : '3',
     'Ti' : '3',
-    'C' : '2'
+    'C' : '2',
+    'Si': '3'
     }
     return azimuth[element]