diff --git a/src/lib/structures/Command.ts b/src/lib/structures/Command.ts
index d2f185c6..ef5b6ec3 100644
--- a/src/lib/structures/Command.ts
+++ b/src/lib/structures/Command.ts
@@ -16,6 +16,8 @@ export class Command extends BasePiece<Command> {
     public readonly canRunInDM: boolean;
     /** The amount of time in seconds of the command's cooldown */
     public readonly cooldown: number;
+    /** Whether or not this command can only be run by the owner */
+    public readonly ownerOnly: boolean;
 
     public run(_message: Message, ..._arg: any[]): void {
         throw new Error(`Run function not defined in ${__filename}`);
@@ -27,6 +29,7 @@ export class Command extends BasePiece<Command> {
         this.nsfw = options?.nsfw ?? false;
         this.canRunInDM = options?.canRunInDM ?? true;
         this.cooldown = options?.cooldown ?? 0;
+        this.ownerOnly = options?.ownerOnly ?? false;
     }
 }
 
@@ -38,5 +41,7 @@ interface CommandOptions extends BasePieceOptions {
     /** Whether or not this command can be called by a user when DM-ing the bot */
     canRunInDM?: boolean;
     /** The amount of time in seconds of a command's cooldown */
-    cooldown: number;
+    cooldown?: number;
+    /** Whether or not this command can only be run by the owner */
+    ownerOnly?: boolean;
 }
\ No newline at end of file
diff --git a/src/lib/structures/Event.ts b/src/lib/structures/Event.ts
index ab2a7ec7..3ee690de 100644
--- a/src/lib/structures/Event.ts
+++ b/src/lib/structures/Event.ts
@@ -23,8 +23,8 @@ export class Event extends BasePiece<Event> {
         super(client, pool, options);
         if (!options.event) throw new Error(`No event name provided in one of the event files.`)
         this.event = options.event;
-        this.disabled = options.disabled || false;
-        this.once = options.once || false;
+        this.disabled = options.disabled ?? false;
+        this.once = options.once ?? false;
     }
 }
 
diff --git a/src/lib/structures/Monitor.ts b/src/lib/structures/Monitor.ts
index 4251b505..c11fa0f8 100644
--- a/src/lib/structures/Monitor.ts
+++ b/src/lib/structures/Monitor.ts
@@ -20,9 +20,9 @@ export class Monitor extends BasePiece<Monitor> {
 
     constructor(client: MoonlightClient, pool: BasePool<string, Monitor>, options: MonitorOptions) {
         super(client, pool, options)
-        this.ignoreSelf = options.ignoreSelf || false;
-        this.ignoreBots = options.ignoreBots || false;
-        this.ignoreOthers = options.ignoreOthers || false;
+        this.ignoreSelf = options.ignoreSelf ?? false;
+        this.ignoreBots = options.ignoreBots ?? false;
+        this.ignoreOthers = options.ignoreOthers ?? false;
     }
 }