diff --git a/src/udi/handlers/snmp/snmp.go b/src/udi/handlers/snmp/snmp.go
index 8511020..d072336 100644
--- a/src/udi/handlers/snmp/snmp.go
+++ b/src/udi/handlers/snmp/snmp.go
@@ -19,7 +19,6 @@ type endpoint_t struct {
   Label string `json:"label"`
   Variable string `json:"variable"`
   Value string `json:"value"`
-  DiffValue string `json:"diffValue"`
 }
 
 type observation_t struct {
@@ -57,6 +56,7 @@ func (self *SnmpHandler) Handle(message handler.MessageT) {
 
   measurement.Values = make(map[string]database.VariableType)
   for k, v := range observation.Variables {
+    var vv string
     measurement.Values[k] = database.VariableType {
       Label: v.Label,
       Variable: v.Variable,