diff --git a/src/Interpreters/InterpreterSelectQuery.cpp b/src/Interpreters/InterpreterSelectQuery.cpp
index 7e65e20724e..901abf8641f 100644
--- a/src/Interpreters/InterpreterSelectQuery.cpp
+++ b/src/Interpreters/InterpreterSelectQuery.cpp
@@ -406,8 +406,8 @@ ASTPtr parseAdditionalFilterConditionForTable(
     for (const auto & additional_filter : additional_table_filters)
     {
         const auto & tuple = additional_filter.safeGet<const Tuple &>();
-        auto & table = tuple.at(0).safeGet<String>();
-        auto & filter = tuple.at(1).safeGet<String>();
+        const auto & table = tuple.at(0).safeGet<String>();
+        const auto & filter = tuple.at(1).safeGet<String>();
 
         if (table == target.alias ||
             (table == target.table && context.getCurrentDatabase() == target.database) ||