diff --git a/ChangeLog b/ChangeLog
index 9bf18d52..0407e7bd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 SNMP::Info - Friendly OO-style interface to Network devices using SNMP.
 
+version 3.34 ()
+
+  [BUG FIXES]
+
+  * Serial number on Nexus 9372 (genereic check for ID before using) (M. Caines)
+
 version 3.33 (2016-04-27)
 
   [ENHANCEMENTS]
diff --git a/Info/Layer3.pm b/Info/Layer3.pm
index 5d316548..ad2724ee 100644
--- a/Info/Layer3.pm
+++ b/Info/Layer3.pm
@@ -201,7 +201,7 @@ sub serial {
         my $parent = $e_parent->{$iid};
         if ( $parent eq '0' ) {
             my $serial = $l3->e_serial($iid);
-            if ( $serial ) {
+            if ( $serial && $serial->{$iid} ) {
                 return $serial->{$iid};
             }
             else {