diff --git a/docs/conf.py b/docs/conf.py
index 57603df6..0e4bc6c0 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -165,6 +165,7 @@ def entire_domain(host):
 suppress_warnings = [
     "autoapi.python_import_resolution",
     "autoapi.toc_reference",
+    "epub.duplicated_toc_entry",
 ]
 autoapi_root = "api"
 autoapi_ignore = [