diff --git a/source/Lib/DecoderLib/CABACReader.cpp b/source/Lib/DecoderLib/CABACReader.cpp
index 70ad626037428615ea2d51602f3a0e6728f26055..0b878c7d6dadebf784a19b536320a6f09ab5e6bf 100644
--- a/source/Lib/DecoderLib/CABACReader.cpp
+++ b/source/Lib/DecoderLib/CABACReader.cpp
@@ -1555,7 +1555,7 @@ void CABACReader::pred_mode( CodingUnit& cu )
     {
       cu.predMode = MODE_INTRA;
 #if INTRA_RM_SMALL_BLOCK_SIZE_CONSTRAINTS
-      if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && ( isLuma(cu.chType)))
+      if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (CS::isDualITree(*cu.cs) || isLuma(cu.chType)))
 #else
       if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && ( ( (!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16) ) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16 ) )  ) && (!cu.isLocalSepTree() || isLuma(cu.chType)  )  )
 #endif
@@ -1570,9 +1570,9 @@ void CABACReader::pred_mode( CodingUnit& cu )
     {
       cu.predMode = m_BinDecoder.decodeBin(Ctx::PredMode(DeriveCtx::CtxPredModeFlag(cu))) ? MODE_INTRA : MODE_INTER;
 #if INTRA_RM_SMALL_BLOCK_SIZE_CONSTRAINTS
-      if (CU::isIntra(cu) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (isLuma(cu.chType)))
+      if (CU::isIntra(cu) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (CS::isDualITree(*cu.cs) || isLuma(cu.chType)))
 #else
-      if (CU::isIntra(cu) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && ( ( (!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16) ) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16 ) )  ) && (!cu.isLocalSepTree() || isLuma(cu.chType)  )  )
+      if (CU::isIntra(cu) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && ( ( (!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16) ) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16 ) )  ) && (!cu.isLocalSepTree() || isLuma(cu.chType)  )  )
 #endif
       {
         if (m_BinDecoder.decodeBin(Ctx::PLTFlag(0)))
diff --git a/source/Lib/EncoderLib/CABACWriter.cpp b/source/Lib/EncoderLib/CABACWriter.cpp
index 9121cf0f7b4913ec96cd33f59663e954ed3d30fc..b7676a28e4ed8fb6f38901a24c228967b6c218db 100644
--- a/source/Lib/EncoderLib/CABACWriter.cpp
+++ b/source/Lib/EncoderLib/CABACWriter.cpp
@@ -1056,7 +1056,7 @@ void CABACWriter::pred_mode( const CodingUnit& cu )
 #endif
     {
 #if INTRA_RM_SMALL_BLOCK_SIZE_CONSTRAINTS
-      if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (isLuma(cu.chType)))
+      if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (CS::isDualITree(*cu.cs) || isLuma(cu.chType)))
 #else
       if (cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && ( ( (!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16) ) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16 ) )  ) && (!cu.isLocalSepTree() || isLuma(cu.chType)  ) )
 #endif
@@ -1065,7 +1065,7 @@ void CABACWriter::pred_mode( const CodingUnit& cu )
     }
     m_BinEncoder.encodeBin((CU::isIntra(cu) || CU::isPLT(cu)), Ctx::PredMode(DeriveCtx::CtxPredModeFlag(cu)));
 #if INTRA_RM_SMALL_BLOCK_SIZE_CONSTRAINTS
-    if ((CU::isIntra(cu) || CU::isPLT(cu)) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (isLuma(cu.chType)))
+    if ((CU::isIntra(cu) || CU::isPLT(cu)) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && (((!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16)) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16))) && (CS::isDualITree(*cu.cs) || isLuma(cu.chType)))
 #else
     if ((CU::isIntra(cu) || CU::isPLT(cu)) && cu.cs->slice->getSPS()->getPLTMode() && cu.lwidth() <= 64 && cu.lheight() <= 64 && ( ( (!isLuma(cu.chType)) && (cu.chromaSize().width * cu.chromaSize().height > 16) ) || ((isLuma(cu.chType)) && ((cu.lumaSize().width * cu.lumaSize().height) > 16 ) )  ) && (!cu.isLocalSepTree() || isLuma(cu.chType)  )  )
 #endif