diff --git a/source/Lib/DecoderLib/NALread.cpp b/source/Lib/DecoderLib/NALread.cpp
index 849770072bccf51d148efb5ac6a50e1e1a4b6bbf..108ebaa85a04f6d8d6c32fc160c6c7d4de704de7 100644
--- a/source/Lib/DecoderLib/NALread.cpp
+++ b/source/Lib/DecoderLib/NALread.cpp
@@ -111,9 +111,9 @@ static void xTraceNalUnitHeader(InputNALUnit& nalu)
 {
   DTRACE( g_trace_ctx, D_NALUNITHEADER, "*********** NAL UNIT (%s) ***********\n", nalUnitTypeToString(nalu.m_nalUnitType) );
   #if JVET_N0067_NAL_Unit_Header
-  DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "zero_tid_required_flag", 1, nalu.m_zeroTidRequiredFlag );
+  DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "zero_tid_required_flag", 1, m_zeroTidRequiredFlag );
   DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "nuh_temporal_id_plus1", 3, nalu.m_temporalId + 1 );
-  DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "nal_unit_type_lsb", 4, (nalu.m_nalUnitType) - (nalu.m_zeroTidRequiredFlag << 4));
+  DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "nal_unit_type_lsb", 4, (nalu.m_nalUnitType) - (m_zeroTidRequiredFlag << 4));
   DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "nuh_layer_id", 7, nalu.m_nuhLayerId );
   DTRACE( g_trace_ctx, D_NALUNITHEADER, "%-50s u(%d)  : %u\n", "nuh_reserved_zero_bit", 1, 0 );
   #else