diff --git a/org/open_power/Logging/PEL.interface.yaml b/org/open_power/Logging/PEL.interface.yaml
index d51e999..d78b641 100644
--- a/org/open_power/Logging/PEL.interface.yaml
+++ b/org/open_power/Logging/PEL.interface.yaml
@@ -6,7 +6,7 @@
       Returns a file desciptor to a PEL.
     parameters:
       - name: pelID
-        type: int32
+        type: uint32
         description: >
           The PEL log ID of the PEL to retrieve.
     returns:
@@ -23,7 +23,7 @@
       Returns PEL data based on the OpenBMC event log ID.
     parameters:
       - name: obmcLogID
-        type: int32
+        type: uint32
         description: >
           The OpenBMC event log ID of the PEL to retrieve.
     returns: