diff --git a/index.d.ts b/index.d.ts
index 552933d8d..7dde38a43 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -200,7 +200,7 @@ declare namespace Eris {
     description: T extends Constants["ApplicationCommandTypes"]["CHAT_INPUT"] ? string : never;
     options?: ApplicationCommandOption[];
     type: T;
-    default_permission?: boolean;
+    defaultPermission?: boolean;
   }
 
   type AnyApplicationCommand = ChatInputApplicationCommand | MessageApplicationCommand | UserApplicationCommand;
diff --git a/lib/Client.js b/lib/Client.js
index 3e9184f93..d8e5e6508 100644
--- a/lib/Client.js
+++ b/lib/Client.js
@@ -552,7 +552,7 @@ class Client extends EventEmitter {
     * @arg {String} [command.description] The command description (Slash Commands Only)
     * @arg {Array<Object>} [command.options] An array of [command options](https://discord.com/developers/docs/interactions/application-commands#application-command-object-application-command-option-structure)
     * @arg {Number} [command.type] The type of application command, 1 for slash command, 2 for user, and 3 for message
-    * @arg {Boolean} [command.default_permission=true] Whether the command is enabled by default when the app is added to a guild
+    * @arg {Boolean} [command.defaultPermission=true] Whether the command is enabled by default when the app is added to a guild
     * @returns {Promise<Object>} Resolves with a commands object
     */
     createCommand(command) {
@@ -565,6 +565,7 @@ class Client extends EventEmitter {
             }
         }
 
+        command.default_permission = command.defaultPermission;
         return this.requestHandler.request("POST", Endpoints.COMMANDS(this.application.id), true, command);
     }
 
@@ -622,7 +623,7 @@ class Client extends EventEmitter {
     * @arg {String} [command.description] The command description (Slash Commands Only)
     * @arg {Array<Object>} [command.options] An array of [command options](https://discord.com/developers/docs/interactions/application-commands#application-command-object-application-command-option-structure)
     * @arg {Number} [command.type] The type of application command, 1 for slash command, 2 for user, and 3 for message
-    * @arg {Boolean} [command.default_permission=true] Whether the command is enabled by default when the app is added to a guild
+    * @arg {Boolean} [command.defaultPermission=true] Whether the command is enabled by default when the app is added to a guild
     * @returns {Promise<Object>} Resolves with a commands object
     */
     createGuildCommand(guildID, command) {
@@ -635,6 +636,7 @@ class Client extends EventEmitter {
             }
         }
 
+        command.default_permission = command.defaultPermission;
         return this.requestHandler.request("POST", Endpoints.GUILD_COMMANDS(this.application.id, guildID), true, command);
     }
 
@@ -1337,7 +1339,7 @@ class Client extends EventEmitter {
     * @arg {String} command.name The command name
     * @arg {String} [command.description] The command description (Slash Commands Only)
     * @arg {Array<Object>} [command.options] An array of [command options](https://discord.com/developers/docs/interactions/application-commands#application-command-object-application-command-option-structure)
-    * @arg {Boolean} [command.default_permission] Whether the command is enabled by default when the app is added to a guild
+    * @arg {Boolean} [command.defaultPermission] Whether the command is enabled by default when the app is added to a guild
     * @returns {Promise<Object>} Resolves with a commands object
     */
     editCommand(commandID, command) {
@@ -1352,6 +1354,7 @@ class Client extends EventEmitter {
                 }
             }
         }
+        command.default_permission = command.defaultPermission;
         return this.requestHandler.request("PATCH", Endpoints.COMMAND(this.application.id, commandID), true, command);
     }
 
@@ -1429,7 +1432,7 @@ class Client extends EventEmitter {
     * @arg {String} command.name The command name
     * @arg {String} [command.description] The command description (Slash Commands Only)
     * @arg {Array<Object>} [command.options] An array of [command options](https://discord.com/developers/docs/interactions/application-commands#application-command-object-application-command-option-structure)
-    * @arg {Boolean} [command.default_permission] Whether the command is enabled by default when the app is added to a guild
+    * @arg {Boolean} [command.defaultPermission] Whether the command is enabled by default when the app is added to a guild
     * @returns {Promise<Object>} Resolves with a commands object
     */
     editGuildCommand(guildID, commandID, command) {
@@ -1444,6 +1447,7 @@ class Client extends EventEmitter {
                 }
             }
         }
+        command.default_permission = command.defaultPermission;
         return this.requestHandler.request("PATCH", Endpoints.GUILD_COMMAND(this.application.id, guildID, commandID), true, command);
     }