diff --git a/pyzkaccess/cli.py b/pyzkaccess/cli.py
index 4326135..bbc5f07 100644
--- a/pyzkaccess/cli.py
+++ b/pyzkaccess/cli.py
@@ -1237,7 +1237,13 @@ def change_ip(self, mac_address: str, new_ip: str, *, broadcast_address: str = "
             broadcast_address: broadcast network address to send
                 broadcast packets to. Default: 255.255.255.255
         """
-        ZKAccess.change_ip(self._parse_mac(mac_address), self._parse_ip(new_ip), self._parse_ip(broadcast_address), ChangeIPProtocol.udp, self._dllpath)
+        ZKAccess.change_ip(
+            self._parse_mac(mac_address),
+            self._parse_ip(new_ip),
+            self._parse_ip(broadcast_address),
+            ChangeIPProtocol.udp,
+            self._dllpath,
+        )
 
     @staticmethod
     def _parse_ip(value: Any) -> str:
@@ -1253,7 +1259,7 @@ def _parse_ip(value: Any) -> str:
     @staticmethod
     def _parse_mac(value: Any) -> str:
         if not isinstance(value, str):
-            raise ValueError("Bad MAC address")
+            raise FireError("Bad MAC address")
 
         if not re.match(r"^[0-9a-fA-F]{2}([:-]?[0-9a-fA-F]{2}){5}$", value):
             raise FireError(f"Bad MAC address '{value}'")