diff --git a/source/Lib/CommonLib/SEI.cpp b/source/Lib/CommonLib/SEI.cpp
index 3f8fc78bc3dd150a9525720c2888e6d7f50c3ac7..b467b2bb79c2c1abecd9dd0575d90c11c511d796 100644
--- a/source/Lib/CommonLib/SEI.cpp
+++ b/source/Lib/CommonLib/SEI.cpp
@@ -834,7 +834,7 @@ SEIMasteringDisplayColourVolume::SEIMasteringDisplayColourVolume(const SEIMaster
 SEIScalableNesting::SEIScalableNesting(const SEIScalableNesting& sei)
 {
   olsIdx              = sei.olsIdx;
-  m_snAllLayersFlag = sei.m_snAllLayersFlag;
+  allLayersFlag       = sei.allLayersFlag;
   m_snNumLayersMinus1 = sei.m_snNumLayersMinus1;
   std::memcpy(m_snLayerId, sei.m_snLayerId, sizeof(sei.m_snLayerId));
   subpicIdLen     = sei.subpicIdLen;
diff --git a/source/Lib/CommonLib/SEI.h b/source/Lib/CommonLib/SEI.h
index 34821e88788116ac5e08d65ef3fd384184851d23..b570341e2ecd70f239e046b2536afe82490981d7 100644
--- a/source/Lib/CommonLib/SEI.h
+++ b/source/Lib/CommonLib/SEI.h
@@ -894,7 +894,7 @@ class SEIScalableNesting : public SEI
 public:
   PayloadType payloadType() const { return PayloadType::SCALABLE_NESTING; }
 
-  SEIScalableNesting() : m_snAllLayersFlag(false), m_snNumLayersMinus1(0)
+  SEIScalableNesting() : m_snNumLayersMinus1(0)
   {
     olsIdx.clear();
     subpicId.clear();
@@ -910,7 +910,7 @@ public:
 
   std::vector<uint16_t> subpicId;
 
-  bool      m_snAllLayersFlag;                      //value valid if m_nestingOlsFlag == 0
+  bool      allLayersFlag = false;                  // value valid if m_nestingOlsFlag == 0
   uint32_t  m_snNumLayersMinus1;                    //value valid if m_nestingOlsFlag == 0 and m_nestingAllLayersFlag == 0
   uint8_t m_snLayerId[MAX_NESTING_NUM_LAYER];   // value valid if m_nestingOlsFlag == 0 and m_nestingAllLayersFlag == 0.
                                                 // This can e.g. be a static array of 64 uint8_t values
diff --git a/source/Lib/DecoderLib/SEIread.cpp b/source/Lib/DecoderLib/SEIread.cpp
index 0dbcd945bfdb6471b73a51eefae0631a8fcd4768..8360e98cfe8fba6b659626de953e5ab14144fbfa 100644
--- a/source/Lib/DecoderLib/SEIread.cpp
+++ b/source/Lib/DecoderLib/SEIread.cpp
@@ -992,8 +992,9 @@ void SEIReader::xParseSEIScalableNesting(SEIScalableNesting& sei, const NalUnitT
   }
   else
   {
-    sei_read_flag(decodedMessageOutputStream, symbol, "sn_all_layers_flag"); sei.m_snAllLayersFlag = symbol;
-    if (!sei.m_snAllLayersFlag)
+    sei_read_flag(decodedMessageOutputStream, symbol, "sn_all_layers_flag");
+    sei.allLayersFlag = symbol != 0;
+    if (!sei.allLayersFlag)
     {
       sei_read_uvlc(decodedMessageOutputStream, symbol, "sn_num_layers_minus1"); sei.m_snNumLayersMinus1 = symbol;
       sei.m_snLayerId[0] = nuhLayerId;
@@ -1251,8 +1252,9 @@ void SEIReader::xParseSEIScalableNestingBinary(SEIScalableNesting &sei, const Na
   }
   else
   {
-    sei_read_flag(decodedMessageOutputStream, symbol, "sn_all_layers_flag"); sei.m_snAllLayersFlag = symbol;
-    if (!sei.m_snAllLayersFlag)
+    sei_read_flag(decodedMessageOutputStream, symbol, "sn_all_layers_flag");
+    sei.allLayersFlag = symbol != 0;
+    if (!sei.allLayersFlag)
     {
       sei_read_uvlc(decodedMessageOutputStream, symbol, "sn_num_layers_minus1"); sei.m_snNumLayersMinus1 = symbol;
       sei.m_snLayerId[0] = nuhLayerId;
@@ -1358,7 +1360,7 @@ void SEIReader::xParseSEIScalableNestingBinary(SEIScalableNesting &sei, const Na
         }
       }
     }
-    else if (sei.m_snAllLayersFlag)
+    else if (sei.allLayersFlag)
     {
       for (uint32_t k = 0; k < numSubPics; k++)
       {
diff --git a/source/Lib/EncoderLib/SEIEncoder.cpp b/source/Lib/EncoderLib/SEIEncoder.cpp
index fe28d2a81df3aee18afeb4c9bcdcffceb62d91f4..9581bf39645070eb3a15d01f170a758fae064f7e 100644
--- a/source/Lib/EncoderLib/SEIEncoder.cpp
+++ b/source/Lib/EncoderLib/SEIEncoder.cpp
@@ -476,7 +476,7 @@ void SEIEncoder::initSEIScalableNesting(SEIScalableNesting *scalableNestingSEI,
   }
   else
   {
-    scalableNestingSEI->m_snAllLayersFlag = 0;                          // nesting is not applied to all layers
+    scalableNestingSEI->allLayersFlag       = false;   // nesting is not applied to all layers
     scalableNestingSEI->m_snNumLayersMinus1 = (uint32_t) targetLayers.size() - 1;  //nesting_num_layers_minus1
     for (int i=0; i <= scalableNestingSEI->m_snNumLayersMinus1; i++ )
     {
diff --git a/source/Lib/EncoderLib/SEIwrite.cpp b/source/Lib/EncoderLib/SEIwrite.cpp
index 31fa9f836740256b082742b6054151a272f1e8ae..bea5c07092f06cedc6f7ef4f603c3868d45d178d 100644
--- a/source/Lib/EncoderLib/SEIwrite.cpp
+++ b/source/Lib/EncoderLib/SEIwrite.cpp
@@ -628,8 +628,8 @@ void SEIWriter::xWriteSEIScalableNesting(OutputBitstream& bs, const SEIScalableN
   }
   else
   {
-    xWriteFlag(sei.m_snAllLayersFlag, "sn_all_layers_flag");
-    if (!sei.m_snAllLayersFlag)
+    xWriteFlag(sei.allLayersFlag ? 1 : 0, "sn_all_layers_flag");
+    if (!sei.allLayersFlag)
     {
       xWriteUvlc(sei.m_snNumLayersMinus1, "sn_num_layers_minus1");
       for (uint32_t i = 1; i <= sei.m_snNumLayersMinus1; i++)