diff --git a/src/structures/ClientApplication.js b/src/structures/ClientApplication.js
index 84fea5521..eab5f30f5 100644
--- a/src/structures/ClientApplication.js
+++ b/src/structures/ClientApplication.js
@@ -123,7 +123,7 @@ class ClientApplication extends Base {
    * A link to the application's icon.
    * @param {Object} [options={}] Options for the icon url
    * @param {string} [options.format='webp'] One of `webp`, `png`, `jpg`
-   * @param {number} [options.size=128] One of `128`, '256', `512`, `1024`, `2048`
+   * @param {number} [options.size=128] One of `128`, `256`, `512`, `1024`, `2048`
    * @returns {?string} URL to the icon
    */
   iconURL({ format, size } = {}) {
@@ -135,7 +135,7 @@ class ClientApplication extends Base {
    * A link to this application's cover image.
    * @param {Object} [options={}] Options for the cover image url
    * @param {string} [options.format='webp'] One of `webp`, `png`, `jpg`
-   * @param {number} [options.size=128] One of `128`, '256', `512`, `1024`, `2048`
+   * @param {number} [options.size=128] One of `128`, `256`, `512`, `1024`, `2048`
    * @returns {?string} URL to the cover image
    */
   coverImage({ format, size } = {}) {
diff --git a/src/structures/GroupDMChannel.js b/src/structures/GroupDMChannel.js
index 06ba2f946..fe6653956 100644
--- a/src/structures/GroupDMChannel.js
+++ b/src/structures/GroupDMChannel.js
@@ -110,7 +110,7 @@ class GroupDMChannel extends Channel {
    * Gets the URL to this Group DM's icon.
    * @param {Object} [options={}] Options for the icon url
    * @param {string} [options.format='webp'] One of `webp`, `png`, `jpg`
-   * @param {number} [options.size=128] One of `128`, '256', `512`, `1024`, `2048`
+   * @param {number} [options.size=128] One of `128`, `256`, `512`, `1024`, `2048`
    * @returns {?string}
    */
   iconURL({ format, size } = {}) {
diff --git a/src/structures/Guild.js b/src/structures/Guild.js
index 7c8f6852d..c1474759b 100644
--- a/src/structures/Guild.js
+++ b/src/structures/Guild.js
@@ -253,7 +253,7 @@ class Guild extends Base {
    * The URL to this guild's icon.
    * @param {Object} [options={}] Options for the icon url
    * @param {string} [options.format='webp'] One of `webp`, `png`, `jpg`
-   * @param {number} [options.size=128] One of `128`, '256', `512`, `1024`, `2048`
+   * @param {number} [options.size=128] One of `128`, `256`, `512`, `1024`, `2048`
    * @returns {?string}
    */
   iconURL({ format, size } = {}) {
@@ -274,7 +274,7 @@ class Guild extends Base {
    * The URL to this guild's splash.
    * @param {Object} [options={}] Options for the splash url
    * @param {string} [options.format='webp'] One of `webp`, `png`, `jpg`
-   * @param {number} [options.size=128] One of `128`, '256', `512`, `1024`, `2048`
+   * @param {number} [options.size=128] One of `128`, `256`, `512`, `1024`, `2048`
    * @returns {?string}
    */
   splashURL({ format, size } = {}) {
@@ -680,6 +680,11 @@ class Guild extends Base {
    * @param {ChannelResolvable} systemChannel The new system channel
    * @param {string} [reason] Reason for changing the guild's system channel
    * @returns {Promise<Guild>}
+   * @example
+   * // Edit the guild system channel
+   * guild.setSystemChannel(channel)
+   *  .then(updated => console.log(`Updated guild system channel to ${guild.systemChannel}`))
+   *  .catch(console.error);
    */
   setSystemChannel(systemChannel, reason) {
     return this.edit({ systemChannel }, reason);