diff --git a/ssh_config_utils/config_file.py b/ssh_config_utils/config_file.py
index d3ab062..883d54f 100644
--- a/ssh_config_utils/config_file.py
+++ b/ssh_config_utils/config_file.py
@@ -1,6 +1,6 @@
 from pathlib import Path
 
-from ssh_config_utils.host import GlobalHost, Host
+from ssh_config_utils.host import GlobalHost, Host, HostAlias
 from ssh_config_utils.parser import parse_config_text
 
 
@@ -40,7 +40,11 @@ class ConfigFile:
         self.global_host = global_host
         for host in hosts:
             if isinstance(host.name, list):
-                name = host.name[0]
+                for name in host.name[1:]:
+                    alias = HostAlias(name, host)
+                    self.hosts.setdefault(name, alias)
+                host.name = host.name[0]
+                name = host.name
             else:
                 name = host.name
             self.hosts.setdefault(name, host)
@@ -52,11 +56,9 @@ class ConfigFile:
                 text = file.read()
         else:
             text = fp.read()
-
         data = parse_config_text(text)
         global_host = None
         hosts = []
-
         for host_data in data:
             for key, values in host_data.items():
                 if len(values) == 1:
@@ -75,7 +77,7 @@ class ConfigFile:
 
     def format(self, **format_data):
         hosts = sorted(
-            self.hosts.values(),
+            filter(lambda host: isinstance(host, Host), self.hosts.values()),
             key=lambda host: host.name
             if isinstance(host.name, str)
             else " ".join(host.name),
@@ -90,7 +92,6 @@ class ConfigFile:
         default_data = {"indent": " " * 2, "host_seperator": "\n" * 2}
         default_data.update(format_data)
         text = self.format(**default_data)
-
         if isinstance(fp, (str, bytes, Path)):
             with open(fp, "w") as file:
                 file.write(text)
diff --git a/ssh_config_utils/host.py b/ssh_config_utils/host.py
index ce3db20..450733f 100644
--- a/ssh_config_utils/host.py
+++ b/ssh_config_utils/host.py
@@ -46,17 +46,14 @@ class Host:
         self.parent = None
 
     def __getattr__(self, name):
-
         if name in Host.__ignore__:
             return super().__getattribute__(name)
         return self.options[name]
 
     def __setattr__(self, name, value):
-
         if name in Host.__ignore__:
             super().__setattr__(name, value)
         else:
-
             proper_name = get_proper_name(name)
             self.options[CamelCase_to_snake(proper_name)] = value
 
@@ -70,7 +67,13 @@ class Host:
             return self.parent.fullpath()
 
     def format(self, **format_data):
-        return serialize_host(self.fullname(), self.options, format_data)
+        name = self.fullname()
+        if len(self.aliases) > 0:
+            name = [name]
+            for alias in self.aliases:
+                name.append(aliases.name)
+
+        return serialize_host(name, self.options, format_data)
 
 
 class GlobalHost(Host):