diff --git a/src/PVE/Network/SDN/Ipams/NetboxPlugin.pm b/src/PVE/Network/SDN/Ipams/NetboxPlugin.pm
index 14a69d9..d923269 100644
--- a/src/PVE/Network/SDN/Ipams/NetboxPlugin.pm
+++ b/src/PVE/Network/SDN/Ipams/NetboxPlugin.pm
@@ -283,7 +283,7 @@ sub get_ip_id {
 
 sub is_ip_gateway {
     my ($url, $ip, $headers) = @_;
-    my $result = PVE::Network::SDN::api_request("GET", "$url/addresses/search/$ip", $headers);
+    my $result = PVE::Network::SDN::api_request("GET", "$url/ipam/ip-addresses/?q=$ip", $headers);
     my $data = @{$result->{data}}[0];
     my $description = $data->{description};
     my $is_gateway = 1 if $description eq 'gateway';