diff --git a/network/aerohive/snmp/mode/connectedusers.pm b/network/aerohive/snmp/mode/connectedusers.pm
index 75ce6686e..d2f7ff181 100644
--- a/network/aerohive/snmp/mode/connectedusers.pm
+++ b/network/aerohive/snmp/mode/connectedusers.pm
@@ -103,7 +103,7 @@ sub manage_selection {
     foreach my $oid (keys %{$self->{results}->{ $oid_ahClientSSID }}) {
         $self->{global}->{total}++;
         my $ssid = $self->{results}->{ $oid_ahClientSSID }->{$oid};
-        $self->{ssid}->{$ssid}->{total}++ if defined($self->{ssid}->{$ssid});
+        $self->{ssid}->{$ssid}->{total}++ if (defined($self->{ssid}->{$ssid}));
     }
 
 }