diff --git a/dbms/src/AggregateFunctions/AggregateFunctionSequenceMatch.h b/dbms/src/AggregateFunctions/AggregateFunctionSequenceMatch.h
index cb5c55adc92..bb1c1a8b103 100644
--- a/dbms/src/AggregateFunctions/AggregateFunctionSequenceMatch.h
+++ b/dbms/src/AggregateFunctions/AggregateFunctionSequenceMatch.h
@@ -286,7 +286,7 @@ private:
         ParserString dot_p(".");
         ParserNumber number_p;
 
-        auto pos = pattern.data();
+        const char * pos = pattern.data();
         const auto begin = pos;
         const auto end = pos + pattern.size();