diff --git a/src/Storages/ObjectStorage/DataLakes/IcebergMetadata.cpp b/src/Storages/ObjectStorage/DataLakes/IcebergMetadata.cpp
index 8550717d4c7..8aac7b62d48 100644
--- a/src/Storages/ObjectStorage/DataLakes/IcebergMetadata.cpp
+++ b/src/Storages/ObjectStorage/DataLakes/IcebergMetadata.cpp
@@ -74,6 +74,8 @@ IcebergMetadata::IcebergMetadata(
     current_schema_id = schema_id;
 }
 
+namespace
+{
 enum class ManifestEntryStatus : uint8_t
 {
     EXISTING = 0,
@@ -123,6 +125,8 @@ bool operator!=(const Poco::JSON::Object & first, const Poco::JSON::Object & sec
     return !(first == second);
 }
 
+}
+
 
 DataTypePtr IcebergSchemaProcessor::getSimpleType(const String & type_name)
 {