diff --git a/packages/discord.js/src/managers/AutoModerationRuleManager.js b/packages/discord.js/src/managers/AutoModerationRuleManager.js
index b212babb064f..960173940f48 100644
--- a/packages/discord.js/src/managers/AutoModerationRuleManager.js
+++ b/packages/discord.js/src/managers/AutoModerationRuleManager.js
@@ -75,6 +75,7 @@ class AutoModerationRuleManager extends CachedManager {
    * @typedef {Object} AutoModerationActionMetadataOptions
    * @property {GuildTextChannelResolvable|ThreadChannel} [channel] The channel to which content will be logged
    * @property {number} [durationSeconds] The timeout duration in seconds
+   * @property {string} [customMessage] The custom message that is shown whenever a message is blocked
    */
 
   /**
@@ -130,6 +131,7 @@ class AutoModerationRuleManager extends CachedManager {
           metadata: {
             duration_seconds: action.metadata?.durationSeconds,
             channel_id: action.metadata?.channel && this.guild.channels.resolveId(action.metadata.channel),
+            custom_message: action.metadata?.customMessage,
           },
         })),
         enabled,
@@ -186,6 +188,7 @@ class AutoModerationRuleManager extends CachedManager {
           metadata: {
             duration_seconds: action.metadata?.durationSeconds,
             channel_id: action.metadata?.channel && this.guild.channels.resolveId(action.metadata.channel),
+            custom_message: action.metadata?.customMessage,
           },
         })),
         enabled,
diff --git a/packages/discord.js/src/structures/AutoModerationRule.js b/packages/discord.js/src/structures/AutoModerationRule.js
index 3767331b4ef8..3fcbda2b78b9 100644
--- a/packages/discord.js/src/structures/AutoModerationRule.js
+++ b/packages/discord.js/src/structures/AutoModerationRule.js
@@ -96,6 +96,7 @@ class AutoModerationRule extends Base {
        * @typedef {Object} AutoModerationActionMetadata
        * @property {?Snowflake} channelId The id of the channel to which content will be logged
        * @property {?number} durationSeconds The timeout duration in seconds
+       * @property {?string} customMessage The custom message that is shown whenever a message is blocked
        */
 
       /**
diff --git a/packages/discord.js/src/util/Transformers.js b/packages/discord.js/src/util/Transformers.js
index 8799dda008ca..f4d7af0ec6ab 100644
--- a/packages/discord.js/src/util/Transformers.js
+++ b/packages/discord.js/src/util/Transformers.js
@@ -28,6 +28,7 @@ function _transformAPIAutoModerationAction(autoModerationAction) {
     metadata: {
       durationSeconds: autoModerationAction.metadata.duration_seconds ?? null,
       channelId: autoModerationAction.metadata.channel_id ?? null,
+      customMessage: autoModerationAction.metadata.custom_message ?? null,
     },
   };
 }
diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index 597f334d98da..b0ad33bf8a21 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -4543,6 +4543,7 @@ export interface AutoModerationAction {
 export interface AutoModerationActionMetadata {
   channelId: Snowflake | null;
   durationSeconds: number | null;
+  customMessage: string | null;
 }
 
 export interface AutoModerationTriggerMetadata {