diff --git a/extensions/openpower-pels/private_header.hpp b/extensions/openpower-pels/private_header.hpp
index dbdaca6..6ba505f 100644
--- a/extensions/openpower-pels/private_header.hpp
+++ b/extensions/openpower-pels/private_header.hpp
@@ -212,7 +212,7 @@
      */
     static constexpr size_t flattenedSize()
     {
-        return Section::flattenedSize() + sizeof(_createTimestamp) +
+        return Section::headerSize() + sizeof(_createTimestamp) +
                sizeof(_commitTimestamp) + sizeof(_creatorID) +
                sizeof(_logType) + sizeof(_reservedByte) +
                sizeof(_sectionCount) + sizeof(_obmcLogID) +