diff --git a/writerfilter/source/dmapper/DomainMapper.cxx b/writerfilter/source/dmapper/DomainMapper.cxx
index 92bcdc30f969..9c61c5365161 100644
--- a/writerfilter/source/dmapper/DomainMapper.cxx
+++ b/writerfilter/source/dmapper/DomainMapper.cxx
@@ -3218,10 +3218,7 @@ void DomainMapper::lcl_positivePercentage(const OUString& rText)
 
 void DomainMapper::lcl_utext(const sal_uInt8 * data_, size_t len)
 {
-    OUString sText;
-    OUStringBuffer aBuffer = OUStringBuffer(sal::static_int_cast<int>(len));
-    aBuffer.append( reinterpret_cast<const sal_Unicode *>(data_), len);
-    sText = aBuffer.makeStringAndClear();
+    OUString sText(reinterpret_cast<const sal_Unicode *>(data_), len);
     const RubyInfo & aInfo = m_pImpl->GetRubyInfo();
     if (aInfo.nSprmId == NS_ooxml::LN_CT_Ruby_rt)
     {