diff --git a/netjsonconfig/backends/wireguard/wireguard.py b/netjsonconfig/backends/wireguard/wireguard.py
index f8179035b..990e2b19b 100644
--- a/netjsonconfig/backends/wireguard/wireguard.py
+++ b/netjsonconfig/backends/wireguard/wireguard.py
@@ -36,6 +36,6 @@ def auto_client(cls, host='', pub_key='', server={}, port=51820, **kwargs):
                 'public_key': pub_key,
                 'endpoint_host': host,
                 'endpoint_port': server.get('port', 51820),
-                'allowed_ips': [kwargs.get('server_ip_max_prefix', '')],
+                'allowed_ips': [kwargs.get('server_ip_network', '')],
             },
         }
diff --git a/tests/openwrt/test_backend.py b/tests/openwrt/test_backend.py
index 197d6829a..9f647d96f 100644
--- a/tests/openwrt/test_backend.py
+++ b/tests/openwrt/test_backend.py
@@ -505,7 +505,7 @@ def test_wireguard_auto_client(self):
                     host='0.0.0.0',
                     pub_key='server_public_key',
                     server={'name': 'wg', 'port': 51820},
-                    server_ip_max_prefix='10.0.0.1/24',
+                    server_ip_network='10.0.0.1/24',
                     ip_address='10.0.0.2',
                 ),
                 expected,
@@ -536,7 +536,7 @@ def test_vxlan_wireguard_auto_client(self):
                     host='0.0.0.0',
                     pub_key='server_public_key',
                     server={'name': 'wg', 'port': 51820},
-                    server_ip_max_prefix='10.0.0.1/24',
+                    server_ip_network='10.0.0.1/24',
                     vni=1,
                     server_ip_address='10.0.0.1',
                 ),
diff --git a/tests/openwrt/test_wireguard.py b/tests/openwrt/test_wireguard.py
index b68335504..aa4446dbb 100644
--- a/tests/openwrt/test_wireguard.py
+++ b/tests/openwrt/test_wireguard.py
@@ -163,7 +163,7 @@ def test_render_wireguard_peer_with_variables(self):
                         "interface": "wg0",
                         "public_key": "{{pub_key_8097b09be57a4b278e2ef2ea9ea809f3}}",
                         "allowed_ips": [
-                            "{{server_ip_max_prefix_8097b09be57a4b278e2ef2ea9ea809f3}}"
+                            "{{server_ip_network_8097b09be57a4b278e2ef2ea9ea809f3}}"
                         ],
                         "endpoint_host": "{{vpn_host_8097b09be57a4b278e2ef2ea9ea809f3}}",
                         "endpoint_port": 40840,
@@ -174,7 +174,7 @@ def test_render_wireguard_peer_with_variables(self):
                 ]
             },
             context={
-                "server_ip_max_prefix_8097b09be57a4b278e2ef2ea9ea809f3": "10.0.0.1/32",
+                "server_ip_network_8097b09be57a4b278e2ef2ea9ea809f3": "10.0.0.1/32",
                 "vpn_host_8097b09be57a4b278e2ef2ea9ea809f3": "192.168.1.42",
                 "pub_key_8097b09be57a4b278e2ef2ea9ea809f3": "rn+isMBpyQ4HX6ZzE709bKnZw5IaLZoIS3hIjmfKCkk=",
                 "pre_key_8097b09be57a4b278e2ef2ea9ea809f3": "oPZmGdHBseaV1TF0julyElNuJyeKs2Eo+o62R/09IB4=",
diff --git a/tests/wireguard/test_backend.py b/tests/wireguard/test_backend.py
index 48b7901d5..7041438cb 100644
--- a/tests/wireguard/test_backend.py
+++ b/tests/wireguard/test_backend.py
@@ -171,7 +171,7 @@ def test_auto_client(self):
                     host='0.0.0.0',
                     pub_key='server_public_key',
                     server={'name': 'wg', 'port': 51820},
-                    server_ip_max_prefix='10.0.0.1/24',
+                    server_ip_network='10.0.0.1/24',
                     ip_address='10.0.0.2',
                 ),
                 expected,