diff --git a/library/init/data/list/basic_aux.lean b/library/init/data/list/basicaux.lean
similarity index 100%
rename from library/init/data/list/basic_aux.lean
rename to library/init/data/list/basicaux.lean
diff --git a/library/init/data/list/default.lean b/library/init/data/list/default.lean
index d2f62e7190..366fc9a658 100644
--- a/library/init/data/list/default.lean
+++ b/library/init/data/list/default.lean
@@ -4,4 +4,4 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Leonardo de Moura
 -/
 prelude
-import init.data.list.basic init.data.list.basic_aux init.data.list.instances
+import init.data.list.basic init.data.list.basicaux init.data.list.instances