diff --git a/extensions/openpower-pels/registry/message_registry.json b/extensions/openpower-pels/registry/message_registry.json
index 210308d..eb6f8e0 100644
--- a/extensions/openpower-pels/registry/message_registry.json
+++ b/extensions/openpower-pels/registry/message_registry.json
@@ -648,6 +648,30 @@
         },
 
         {
+            "Name": "org.open_power.Processor.Error.SbeBootTimeout",
+            "Subsystem": "processor_chip",
+            "ComponentID": "0x3500",
+
+            "SRC":
+            {
+                "ReasonCode": "0x3504",
+                "Words6To9":
+                {
+                }
+            },
+
+            "Documentation":
+            {
+                "Description": "SBE Boot timeout",
+                "Message": "timeout reported during SBE boot process",
+                "Notes": [
+                    "The severity is set by the creator.",
+                    "Check SBE Dump associated to this error to debug the failure."
+                ]
+            }
+        },
+
+        {
             "Name": "org.open_power.Attn.Error.Terminate",
             "Subsystem": "cec_hardware",
             "Severity": "non_error",