diff --git a/schema.json b/schema.json
index a9e582f..361156e 100644
--- a/schema.json
+++ b/schema.json
@@ -20,6 +20,11 @@
           "type": "string",
           "description": "git source repository"
         },
+        "gitBranch": {
+          "type": "string",
+          "description": "git branch to checkout",
+          "default": "main"
+        },
         "gitDependenciesCachePath": {
           "type": "string",
           "description": "Path to git dependencies cache folder <RUNREAL_GIT_DEPENDENCIES_CACHE_PATH>"
diff --git a/src/commands/engine/update.ts b/src/commands/engine/update.ts
index c3d5c53..a6a9e97 100644
--- a/src/commands/engine/update.ts
+++ b/src/commands/engine/update.ts
@@ -16,7 +16,6 @@ export const update = new Command<GlobalOptions>()
 	.option(
 		'-b, --branch <checkout:string>',
 		'git checkout (branch | tag | commit)',
-		{ default: 'main' },
 	)
 	.option('-r, --remote <remote:string>', 'git remote', { default: 'origin' })
 	.option('-c, --clean', 'if we should run a git clean before updating', {
@@ -41,6 +40,8 @@ export const update = new Command<GlobalOptions>()
 		} = options as UpdateOptions
 
 		const cfg = Config.getInstance().mergeConfigCLIConfig({ cliOptions: options })
+		const branchArg = branch || cfg.engine.gitBranch
+
 		const isRepo = await isGitRepo(cfg.engine.path)
 		if (!isRepo) {
 			throw new ValidationError(
@@ -48,7 +49,7 @@ export const update = new Command<GlobalOptions>()
 			)
 		}
 		if (clean) {
-			const clean = await exec('git', [
+			const _clean = await exec('git', [
 				'clean',
 				gitCleanFlags ? gitCleanFlags : '-fxd',
 			], { cwd: cfg.engine.path, dryRun })
@@ -56,20 +57,20 @@ export const update = new Command<GlobalOptions>()
 		// Prevent the default engine hooks from running
 		await deleteEngineHooks(cfg.engine.path)
 
-		const fetch = await exec('git', [
+		const _fetch = await exec('git', [
 			'fetch',
 			remote,
-			branch,
+			branchArg,
 		], { cwd: cfg.engine.path, dryRun })
 
-		const checkout = await exec('git', [
+		const _checkout = await exec('git', [
 			'checkout',
 			'--quiet',
 			'--force',
-			branch,
+			branchArg,
 		], { cwd: cfg.engine.path, dryRun })
 
-		const reset = await exec('git', [
+		const _reset = await exec('git', [
 			'reset',
 			'--hard',
 			'FETCH_HEAD',
diff --git a/src/lib/schema.ts b/src/lib/schema.ts
index 366dea1..25389af 100644
--- a/src/lib/schema.ts
+++ b/src/lib/schema.ts
@@ -30,6 +30,7 @@ export const ConfigSchema = z.object({
 		path: z.string().describe('Path to the engine folder'),
 		repoType: z.string().describe('git or perforce'),
 		gitSource: z.string().optional().describe('git source repository'),
+		gitBranch: z.string().optional().describe('git branch to checkout').default('main'),
 		gitDependenciesCachePath: z
 			.string()
 			.optional()
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 3951453..da5a065 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -249,7 +249,7 @@ export const runEngineSetup = async (
 
 	const deps = await exec(engine.getGitDependencesBin(), args, { cwd: enginePath, dryRun })
 
-	await exec(engine.getGenerateScript(), [])
+	await exec(engine.getGenerateScript(), [], { dryRun })
 }
 
 export const deleteEngineHooks = async (enginePath: string) => {