diff --git a/src/Storages/StorageDeltaLake.cpp b/src/Storages/StorageDeltaLake.cpp
index 6127db79525..9f86eaf70d0 100644
--- a/src/Storages/StorageDeltaLake.cpp
+++ b/src/Storages/StorageDeltaLake.cpp
@@ -94,7 +94,7 @@ void JsonMetadataGetter::init(ContextPtr context)
     }
 }
 
-std::vector<String> JsonMetadataGetter::getJsonLogFiles()
+std::vector<String> JsonMetadataGetter::getJsonLogFiles() const
 {
     const auto & client = base_configuration.client;
     const auto table_path = base_configuration.url.key;
diff --git a/src/Storages/StorageDeltaLake.h b/src/Storages/StorageDeltaLake.h
index 3495a061b14..33a15dcf115 100644
--- a/src/Storages/StorageDeltaLake.h
+++ b/src/Storages/StorageDeltaLake.h
@@ -44,7 +44,7 @@ public:
 private:
     void init(ContextPtr context);
 
-    std::vector<String> getJsonLogFiles();
+    std::vector<String> getJsonLogFiles() const;
 
     std::shared_ptr<ReadBuffer> createS3ReadBuffer(const String & key, ContextPtr context);