diff --git a/lib/runner.js b/lib/runner.js
index cd18212..fd5e04d 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -180,8 +180,9 @@ module.exports = {
 		const otherFiles = await this.clone_assets(options, sourceFiles.other);
 		const cssExitCode = await this.rewrite_css(options, sourceFiles.css);
 		const htmlExitCode = await this.rewrite_html(options, sourceFiles.html);
+		const sitemapExitCode = await this.rewrite_sitemap(options);
 
-		if (!otherFiles || cssExitCode > 0 || htmlExitCode > 0) {
+		if (!otherFiles || cssExitCode > 0 || htmlExitCode > 0 || sitemapExitCode > 0) {
 			log.error('There was an error building your site 😓');
 			return 1;
 		}
diff --git a/test/runner.test.js b/test/runner.test.js
index 9488efb..061e6d0 100644
--- a/test/runner.test.js
+++ b/test/runner.test.js
@@ -197,6 +197,7 @@ describe('build', function () {
 	let cloneAssetsStub;
 	let rewriteCssStub;
 	let rewriteHtmlStub;
+	let rewriteSitemapStub;
 
 	before(function () {
 		cleanStub = sinon.stub(runner, 'clean');
@@ -204,6 +205,7 @@ describe('build', function () {
 		cloneAssetsStub = sinon.stub(runner, 'clone_assets');
 		rewriteCssStub = sinon.stub(runner, 'rewrite_css');
 		rewriteHtmlStub = sinon.stub(runner, 'rewrite_html');
+		rewriteSitemapStub = sinon.stub(runner, 'rewrite_sitemap');
 	});
 
 	context('clean fails', function () {
@@ -272,6 +274,21 @@ describe('build', function () {
 		});
 	});
 
+	context('rewrite_sitemap fails', function () {
+		before(function () {
+			cleanStub.returns([]);
+			fetchStub.returns([]);
+			cloneAssetsStub.returns([]);
+			rewriteCssStub.returns(0);
+			rewriteHtmlStub.returns(0);
+			rewriteSitemapStub.returns(1);
+		});
+		it('should return with exit code 1', async function () {
+			const result = await runner.build(testOp);
+			expect(result).to.equal(1);
+		});
+	});
+
 	context('everything works', function () {
 		before(function () {
 			cleanStub.returns([]);
@@ -279,6 +296,7 @@ describe('build', function () {
 			cloneAssetsStub.returns([]);
 			rewriteCssStub.returns(0);
 			rewriteHtmlStub.returns(0);
+			rewriteSitemapStub.returns(0);
 		});
 		it('should return with exit code 0', async function () {
 			const result = await runner.build(testOp);
@@ -292,6 +310,7 @@ describe('build', function () {
 		cloneAssetsStub.restore();
 		rewriteCssStub.restore();
 		rewriteHtmlStub.restore();
+		rewriteSitemapStub.restore();
 	});
 });