diff --git a/packages/builders/__tests__/interactions/SlashCommands/SlashCommands.test.ts b/packages/builders/__tests__/interactions/SlashCommands/SlashCommands.test.ts
index acfb6fdc2286..64e9d97a710d 100644
--- a/packages/builders/__tests__/interactions/SlashCommands/SlashCommands.test.ts
+++ b/packages/builders/__tests__/interactions/SlashCommands/SlashCommands.test.ts
@@ -1,4 +1,5 @@
 import {
+	ApplicationCommandType,
 	ApplicationIntegrationType,
 	ChannelType,
 	InteractionContextType,
@@ -133,6 +134,10 @@ describe('Slash Commands', () => {
 		});
 
 		describe('Builder with simple options', () => {
+			test('GIVEN valid builder THEN returns type included', () => {
+				expect(getNamedBuilder().toJSON()).includes({ type: ApplicationCommandType.ChatInput });
+			});
+
 			test('GIVEN valid builder with options THEN does not throw error', () => {
 				expect(() =>
 					getBuilder()
diff --git a/packages/builders/src/interactions/slashCommands/mixins/SharedSlashCommand.ts b/packages/builders/src/interactions/slashCommands/mixins/SharedSlashCommand.ts
index 5d39cfc60a31..3908925bdea8 100644
--- a/packages/builders/src/interactions/slashCommands/mixins/SharedSlashCommand.ts
+++ b/packages/builders/src/interactions/slashCommands/mixins/SharedSlashCommand.ts
@@ -1,9 +1,10 @@
-import type {
-	ApplicationIntegrationType,
-	InteractionContextType,
-	LocalizationMap,
-	Permissions,
-	RESTPostAPIChatInputApplicationCommandsJSONBody,
+import {
+	ApplicationCommandType,
+	type ApplicationIntegrationType,
+	type InteractionContextType,
+	type LocalizationMap,
+	type Permissions,
+	type RESTPostAPIChatInputApplicationCommandsJSONBody,
 } from 'discord-api-types/v10';
 import type { RestOrArray } from '../../../util/normalizeArray.js';
 import { normalizeArray } from '../../../util/normalizeArray.js';
@@ -149,6 +150,7 @@ export class SharedSlashCommand {
 
 		return {
 			...this,
+			type: ApplicationCommandType.ChatInput,
 			options: this.options.map((option) => option.toJSON()),
 		};
 	}