diff --git a/src/EbmlMaster.cpp b/src/EbmlMaster.cpp
index 071eb5dc..465560f6 100644
--- a/src/EbmlMaster.cpp
+++ b/src/EbmlMaster.cpp
@@ -455,9 +455,12 @@ void EbmlMaster::Read(EbmlStream & inDataStream, const EbmlSemanticContext & sCo
 
       if (UpperEltFound > 0) {
         UpperEltFound--;
-        if (UpperEltFound > 0 || MaxSizeToRead <= 0)
+        if (UpperEltFound > 0)
           goto processCrc;
         ElementLevelA = FoundElt;
+        if (IsFiniteSize() && ElementLevelA->IsFiniteSize()) {
+          MaxSizeToRead = GetEndPosition() - ElementLevelA->GetEndPosition(); // even if it's the default value
+        }
         continue;
       }