diff --git a/setup.py b/setup.py
index d03515b3cfa729b0c1c675a25ab567bec8eacbf6..6cb873558327c7e84d8223b98a16c08e4fda6eb6 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@ src_file_list = ['field_descriptor',
                  'spline_n4',
                  'spline_n5',
                  'spline_n6',
-                 'Lagrange']
+                 'Lagrange_polys']
 
 header_list = ['cpp/base.hpp'] + ['cpp/' + fname + '.hpp' for fname in src_file_list]