diff --git a/source/npm/util.js b/source/npm/util.js
index 9a1e6dfe..6fe00c47 100644
--- a/source/npm/util.js
+++ b/source/npm/util.js
@@ -193,7 +193,8 @@ function getIgnoredFilesGlob(globArrayFromFilesProperty, packageDirectories) {
 		'node_modules/**/*',
 		'npm-debug.log',
 		'package-lock.json',
-		'.git/**/*'
+		'.git/**/*',
+		'.git'
 	];
 
 	// Test files are assumed not to be part of the package
diff --git a/test/fixtures/npmignore/README.txt b/test/fixtures/npmignore/README.txt
new file mode 100644
index 00000000..5086e7b4
--- /dev/null
+++ b/test/fixtures/npmignore/README.txt
@@ -0,0 +1 @@
+File is always included in package.
diff --git a/test/fixtures/npmignore/readme.md b/test/fixtures/npmignore/readme.md
new file mode 100644
index 00000000..5086e7b4
--- /dev/null
+++ b/test/fixtures/npmignore/readme.md
@@ -0,0 +1 @@
+File is always included in package.
diff --git a/test/integration.js b/test/integration.js
index b1a0b1e1..6be08bac 100644
--- a/test/integration.js
+++ b/test/integration.js
@@ -1,6 +1,11 @@
 const test = require('ava');
 const execa = require('execa');
 
+test.before(async () => {
+	await execa('git', ['submodule', 'update', '--remote']);
+	await execa('npm', ['i'], {cwd: 'integration-test'});
+});
+
 test('Integration tests', async t => {
 	await execa('ava', {cwd: 'integration-test'});
 	t.pass();
diff --git a/test/npmignore.js b/test/npmignore.js
index 8af48236..89c11513 100644
--- a/test/npmignore.js
+++ b/test/npmignore.js
@@ -6,7 +6,9 @@ const newFiles = [
 	'source/ignore.txt',
 	'source/pay_attention.txt',
 	'.hg',
-	'test/file.txt'
+	'test/file.txt',
+	'readme.md',
+	'README.txt'
 ];
 
 test('ignored files using file-attribute in package.json with one file', async t => {