diff --git a/Changes b/Changes
index 45d8157b..90228940 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,9 @@
+Version 3.78 (2021-09-08)
+
+  [BUG FIXES]
+
+  * Fix undefined value error in Bridge.pm i_vlan
+
 Version 3.77 (2021-09-04)
 
   [ENHANCEMENTS]
diff --git a/lib/SNMP/Info/Bridge.pm b/lib/SNMP/Info/Bridge.pm
index 27f22621..a76448d7 100644
--- a/lib/SNMP/Info/Bridge.pm
+++ b/lib/SNMP/Info/Bridge.pm
@@ -366,7 +366,7 @@ sub i_vlan {
     my $bridge  = shift;
     my $partial = shift;
 
-    my $index = $bridge->bp_index();
+    my $index = $bridge->bp_index() or return {};
 
     # If given a partial it will be an ifIndex, we need to use dot1dBasePort
     if ($partial) {