diff --git a/app/containers/MessageBox/index.tsx b/app/containers/MessageBox/index.tsx
index c8c4160e3..edbb76d5a 100644
--- a/app/containers/MessageBox/index.tsx
+++ b/app/containers/MessageBox/index.tsx
@@ -638,12 +638,12 @@ class MessageBox extends Component<IMessageBoxProps, IMessageBoxState> {
 		}, 1000);
 	};
 
-	setCommandPreview = async (command: any, name: string, params: any) => {
+	setCommandPreview = async (command: any, name: string, params: string) => {
 		const { rid } = this.props;
 		try {
-			const { success, preview } = await RocketChat.getCommandPreview(name, rid, params);
-			if (success) {
-				return this.setState({ commandPreview: preview?.items, showCommandPreview: true, command });
+			const response = await RocketChat.getCommandPreview(name, rid, params);
+			if (response.success) {
+				return this.setState({ commandPreview: response.preview?.items, showCommandPreview: true, command });
 			}
 		} catch (e) {
 			log(e);
diff --git a/app/definitions/rest/v1/commands.ts b/app/definitions/rest/v1/commands.ts
new file mode 100644
index 000000000..2aa9dabd6
--- /dev/null
+++ b/app/definitions/rest/v1/commands.ts
@@ -0,0 +1,10 @@
+export type CommandsEndpoints = {
+	'commands.preview': {
+		GET: (params: { command: string; roomId: string; params: string }) => {
+			preview: {
+				i18nTitle: string;
+				items: any;
+			};
+		};
+	};
+};
diff --git a/app/definitions/rest/v1/index.ts b/app/definitions/rest/v1/index.ts
index 4e899f106..dc1cdcd0d 100644
--- a/app/definitions/rest/v1/index.ts
+++ b/app/definitions/rest/v1/index.ts
@@ -16,6 +16,7 @@ import { TeamsEndpoints } from './teams';
 import { E2eEndpoints } from './e2e';
 import { SubscriptionsEndpoints } from './subscriptions';
 import { VideoConferenceEndpoints } from './videoConference';
+import { CommandsEndpoints } from './commands';
 
 export type Endpoints = ChannelsEndpoints &
 	ChatEndpoints &
@@ -34,4 +35,5 @@ export type Endpoints = ChannelsEndpoints &
 	TeamsEndpoints &
 	E2eEndpoints &
 	SubscriptionsEndpoints &
-	VideoConferenceEndpoints;
+	VideoConferenceEndpoints &
+	CommandsEndpoints;
diff --git a/app/lib/rocketchat/services/restApi.ts b/app/lib/rocketchat/services/restApi.ts
index 30a896a4b..38754af63 100644
--- a/app/lib/rocketchat/services/restApi.ts
+++ b/app/lib/rocketchat/services/restApi.ts
@@ -686,10 +686,8 @@ export const runSlashCommand = (command: string, roomId: string, params: any, tr
 		tmid
 	});
 
-export const getCommandPreview = (command: string, roomId: string, params: any): any =>
+export const getCommandPreview = (command: string, roomId: string, params: string) =>
 	// RC 0.65.0
-	// TODO: missing definitions from server
-	// @ts-ignore
 	sdk.get('commands.preview', {
 		command,
 		roomId,