diff --git a/docs/_plugins/build_api_docs.rb b/docs/_plugins/build_api_docs.rb
index 80863b4b56b15..8afcef2c5a0d1 100644
--- a/docs/_plugins/build_api_docs.rb
+++ b/docs/_plugins/build_api_docs.rb
@@ -157,6 +157,7 @@ def build_python_docs
   mkdir_p "api/python"
 
   puts "cp -r ../python/docs/build/html/. api/python"
+  rm_r("../python/docs/build/html/_sources")
   cp_r("../python/docs/build/html/.", "api/python")
 end