diff --git a/src/backend/distributed/operations/worker_shard_copy.c b/src/backend/distributed/operations/worker_shard_copy.c
index d488ef473..ea601fba5 100644
--- a/src/backend/distributed/operations/worker_shard_copy.c
+++ b/src/backend/distributed/operations/worker_shard_copy.c
@@ -368,7 +368,8 @@ ConstructCopyStatement(List *destinationShardFullyQualifiedName, bool useBinaryF
 
 	StringInfo command = makeStringInfo();
 	appendStringInfo(command, "COPY %s.%s FROM STDIN",
-					 destinationShardSchemaName, destinationShardRelationName);
+					 quote_identifier(destinationShardSchemaName), quote_identifier(
+						 destinationShardRelationName));
 
 	if (useBinaryFormat)
 	{
diff --git a/src/backend/distributed/sql/downgrades/citus--11.1-1--11.0-2.sql b/src/backend/distributed/sql/downgrades/citus--11.1-1--11.0-2.sql
index 8703d877a..0a6ec8599 100644
--- a/src/backend/distributed/sql/downgrades/citus--11.1-1--11.0-2.sql
+++ b/src/backend/distributed/sql/downgrades/citus--11.1-1--11.0-2.sql
@@ -46,4 +46,15 @@ CREATE FUNCTION pg_catalog.worker_repartition_cleanup(bigint)
  STRICT
 AS 'MODULE_PATHNAME', $function$worker_repartition_cleanup$function$;
 
+DROP TYPE IF EXISTS citus.split_mode;
+DROP TYPE IF EXISTS citus.split_copy_info;
+DROP FUNCTION pg_catalog.citus_split_shard_by_split_points(
+    shard_id bigint,
+    split_points text[],
+    node_ids integer[],
+    split_mode citus.split_mode);
+DROP FUNCTION pg_catalog.worker_split_copy(
+    source_shard_id bigint,
+    splitCopyInfos citus.split_copy_info[]);
+
 #include "../../../columnar/sql/downgrades/columnar--11.1-1--11.0-2.sql"