diff --git a/src/parse.js b/src/parse.js
index ee510f4..d5d87a3 100644
--- a/src/parse.js
+++ b/src/parse.js
@@ -34,7 +34,7 @@ function atrule(atr, { key, declarations }) {
 	}
 }
 
-module.exports = (css, options = {}) => {
+module.exports = (css, options) => {
 	let rules = []
 	let atrules = []
 
diff --git a/test/declarations.js b/test/aggregates/declarations.js
similarity index 98%
rename from test/declarations.js
rename to test/aggregates/declarations.js
index 52186da..abd83a8 100644
--- a/test/declarations.js
+++ b/test/aggregates/declarations.js
@@ -1,5 +1,5 @@
 const test = require('ava')
-const analyze = require('../')
+const analyze = require('../../')
 
 test('it does not throw an error when there are no declarations', (t) => {
 	t.notThrows(() => analyze(`a {}`))
diff --git a/test/rules.js b/test/aggregates/rules.js
similarity index 98%
rename from test/rules.js
rename to test/aggregates/rules.js
index 0d379f1..7b0ee4e 100644
--- a/test/rules.js
+++ b/test/aggregates/rules.js
@@ -1,5 +1,5 @@
 const test = require('ava')
-const analyze = require('../')
+const analyze = require('../../')
 
 const fixture = `
 	rule1,
diff --git a/test/stylesheet.js b/test/aggregates/stylesheet.js
similarity index 96%
rename from test/stylesheet.js
rename to test/aggregates/stylesheet.js
index f4b8687..a2321a6 100644
--- a/test/stylesheet.js
+++ b/test/aggregates/stylesheet.js
@@ -1,5 +1,5 @@
 const test = require('ava')
-const analyze = require('../')
+const analyze = require('../../')
 
 test('uncompressed filesize', (t) => {
 	const actual = analyze(`a{}`)
diff --git a/test/index.js b/test/index.js
new file mode 100644
index 0000000..1e4a823
--- /dev/null
+++ b/test/index.js
@@ -0,0 +1,31 @@
+const test = require('ava')
+const analyze = require('../')
+
+test('does not throw on syntax error', (t) => {
+	t.notThrows(() =>
+		analyze(`
+		a { color red }
+	`)
+	)
+
+	t.notThrows(() =>
+		analyze(`
+		{}
+	`)
+	)
+})
+
+test('it throws on syntax errors when we ask it to', (t) => {
+	const error = t.throws(
+		() =>
+			analyze(
+				`
+		a { color red }
+	`,
+				{ throwOnSyntaxError: true }
+			),
+		{ instanceOf: SyntaxError }
+	)
+
+	t.is(error.message, 'Colon is expected')
+})