diff --git a/extensions/openpower-pels/pel.cpp b/extensions/openpower-pels/pel.cpp
index 3000864..1eac869 100644
--- a/extensions/openpower-pels/pel.cpp
+++ b/extensions/openpower-pels/pel.cpp
@@ -58,7 +58,7 @@
     Stream pelData{pelBuffer};
     if (_ph->valid())
     {
-        pelData << *_ph;
+        _ph->flatten(pelData);
     }
     else
     {
@@ -67,7 +67,7 @@
 
     if (_uh->valid())
     {
-        pelData << *_uh;
+        _uh->flatten(pelData);
     }
 }