diff --git a/pyghmi/ipmi/oem/lenovo/dimm.py b/pyghmi/ipmi/oem/lenovo/dimm.py
index b51f8205..29fbc8f6 100755
--- a/pyghmi/ipmi/oem/lenovo/dimm.py
+++ b/pyghmi/ipmi/oem/lenovo/dimm.py
@@ -28,7 +28,8 @@ dimm_fields = (
     EntryField("capacity_mb", "<h",
                valuefunc=lambda v: v*1024),
     EntryField("manufacturer", "30s"),
-    EntryField("serial", "I"),
+    EntryField("serial", ">I",
+               valuefunc=lambda v: hex(v)[2:]),
     EntryField("model", "21s"),
     EntryField("reserved", "h", include=False)
 )