diff --git a/extensions/openpower-pels/src.cpp b/extensions/openpower-pels/src.cpp
index 538f3e2..4279a00 100644
--- a/extensions/openpower-pels/src.cpp
+++ b/extensions/openpower-pels/src.cpp
@@ -554,7 +554,7 @@
                             argSourceVals.size())
                     {
                         message.append(getNumberString(
-                            "0x%X", argSourceVals[wordIndex - 1]));
+                            "0x%08X", argSourceVals[wordIndex - 1]));
                     }
                     else
                     {