1 files changed, 1 insertions, 5 deletions
diff --git a/src/mongo/db/pipeline/document_source_facet.h b/src/mongo/db/pipeline/document_source_facet.h
index c9c96fd5c56..344b3448ac9 100644
--- a/src/mongo/db/pipeline/document_source_facet.h
+++ b/src/mongo/db/pipeline/document_source_facet.h
@@ -161,11 +161,7 @@ private:
                         size_t bufferSizeBytes,
                         size_t maxOutputDocBytes);
 
-    Value serialize(boost::optional<ExplainOptions::Verbosity> explain = boost::none) const final;
-
-    Value serialize(SerializationOptions opts) const final override {
-        MONGO_UNIMPLEMENTED;
-    }
+    Value serialize(SerializationOptions opts = SerializationOptions()) const final override;
 
     boost::intrusive_ptr<TeeBuffer> _teeBuffer;
     std::vector<FacetPipeline> _facets;