diff --git a/extensions/openpower-pels/registry.cpp b/extensions/openpower-pels/registry.cpp
index 2c66e0f..b853bca 100644
--- a/extensions/openpower-pels/registry.cpp
+++ b/extensions/openpower-pels/registry.cpp
@@ -610,7 +610,11 @@
         {
             Entry entry;
             entry.name = (*e)["Name"];
-            entry.subsystem = helper::getSubsystem((*e)["Subsystem"]);
+
+            if (e->contains("Subsystem"))
+            {
+                entry.subsystem = helper::getSubsystem((*e)["Subsystem"]);
+            }
 
             if (e->contains("ActionFlags"))
             {