1 files changed, 4 insertions, 1 deletions
diff --git a/src/mongo/db/pipeline/expression_context.h b/src/mongo/db/pipeline/expression_context.h
index abef5b952da..3a0c3b2c2cb 100644
--- a/src/mongo/db/pipeline/expression_context.h
+++ b/src/mongo/db/pipeline/expression_context.h
@@ -168,7 +168,8 @@ public:
                       StringMap<ExpressionContext::ResolvedNamespace> resolvedNamespaces,
                       boost::optional<UUID> collUUID,
                       const boost::optional<BSONObj>& letParameters = boost::none,
-                      bool mayDbProfile = true);
+                      bool mayDbProfile = true,
+                      const SerializationContext& serializationCtx = SerializationContext());
 
     /**
      * Constructs an ExpressionContext suitable for use outside of the aggregation system, including
@@ -464,6 +465,8 @@ public:
 
     NamespaceString ns;
 
+    SerializationContext serializationCtxt;
+
     // If known, the UUID of the execution namespace for this aggregation command.
     boost::optional<UUID> uuid;