Fix TStringBuilderStream

e88898a7dd45bf17aa4fc54bf91639a0fdabbca7

1 files changed, 2 insertions, 2 deletions

diff --git a/yt/yt/core/yson/string_builder_stream.h b/yt/yt/core/yson/string_builder_stream.h
index b1e0aa4b14..ae87bdd2b3 100644
--- a/yt/yt/core/yson/string_builder_stream.h
+++ b/yt/yt/core/yson/string_builder_stream.h
@@ -12,10 +12,10 @@ class TStringBuilderStream final
     : public IOutputStream
 {
 public:
-    TStringBuilderStream(TStringBuilderBase* builder) noexcept;
+    explicit TStringBuilderStream(TStringBuilderBase* builder) noexcept;
 
 private:
-    TStringBuilderBase* Builder_;
+    TStringBuilderBase* const Builder_;
 
     void DoWrite(const void* data, size_t size) final;
 };