diff --git a/mkdocs.yml b/mkdocs.yml
index 8b899d9c..7fba1fb8 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -111,7 +111,6 @@ plugins:
             show_signature_annotations: true
             show_source: true
             show_symbol_type_toc: true
-            show_symbol_type_toc: true
             signature_crossrefs: true
           import:
             # See https://mkdocstrings.github.io/python/usage/#import for details