diff --git a/test/charset.js b/test/charset.js
index 0bec5c9..ac49843 100644
--- a/test/charset.js
+++ b/test/charset.js
@@ -65,6 +65,14 @@ describe('accepts.charsets()', function () {
       assert.strictEqual(accept.charsets(['utf-7', 'utf-8']), 'utf-8')
     })
   })
+
+  describe('with an empty array', function () {
+    it('should return accepted types', function () {
+      var req = createRequest('utf-8, iso-8859-1;q=0.2, utf-7;q=0.5')
+      var accept = accepts(req)
+      assert.ok(deepEqual(accept.charsets(), ['utf-8', 'utf-7', 'iso-8859-1']))
+    })
+  })
 })
 
 function createRequest (charset) {
diff --git a/test/encoding.js b/test/encoding.js
index 0e8585a..94a5063 100644
--- a/test/encoding.js
+++ b/test/encoding.js
@@ -65,6 +65,15 @@ describe('accepts.encodings()', function () {
       assert.strictEqual(accept.encodings(['compress', 'gzip']), 'gzip')
     })
   })
+
+  describe('with an empty array', function () {
+    it('should return accepted types', function () {
+      var req = createRequest('gzip, compress;q=0.2')
+      var accept = accepts(req)
+      assert.ok(deepEqual(accept.encodings([]), ['gzip', 'compress', 'identity']))
+      assert.strictEqual(accept.encodings('gzip', 'compress'), 'gzip')
+    })
+  })
 })
 
 function createRequest (encoding) {
diff --git a/test/language.js b/test/language.js
index 58a0ea1..72254f8 100644
--- a/test/language.js
+++ b/test/language.js
@@ -65,6 +65,14 @@ describe('accepts.languages()', function () {
       assert.strictEqual(accept.languages(['es', 'en']), 'es')
     })
   })
+
+  describe('with an empty array', function () {
+    it('should return accepted types', function () {
+      var req = createRequest('en;q=0.8, es, pt')
+      var accept = accepts(req)
+      assert.deepEqual(accept.languages([]), ['es', 'pt', 'en'])
+    })
+  })
 })
 
 function createRequest (language) {
diff --git a/test/type.js b/test/type.js
index bbe91f3..9c88489 100644
--- a/test/type.js
+++ b/test/type.js
@@ -109,6 +109,14 @@ describe('accepts.types()', function () {
       assert.strictEqual(accept.types('image/png'), false)
     })
   })
+
+  describe('with an empty array', function () {
+    it('should return all accepted types', function () {
+      var req = createRequest('application/*;q=0.2, image/jpeg;q=0.8, text/html, text/plain')
+      var accept = accepts(req)
+      assert.ok(deepEqual(accept.types([]), ['text/html', 'text/plain', 'image/jpeg', 'application/*']))
+    })
+  })
 })
 
 function createRequest (type) {
diff --git a/types/index.d.ts b/types/index.d.ts
index 767f9e7..fd52603 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -11,7 +11,7 @@ declare namespace accepts {
          */
         charset(): string[];
         charset(charsets: string[]): string | string[] | false;
-        charset(...charsets: string[]): string | string[] | false;
+        charset(...charsets: string[]): string | false;
 
         /**
          * Return the first accepted charset. If nothing in `charsets` is accepted, then `false` is returned.
@@ -20,7 +20,7 @@ declare namespace accepts {
          */
         charsets(): string[];
         charsets(charsets: string[]): string | string[] | false;
-        charsets(...charsets: string[]): string | string[] | false;
+        charsets(...charsets: string[]): string | false;
 
         /**
          * Return the first accepted encoding. If nothing in `encodings` is accepted, then `false` is returned.
@@ -29,7 +29,7 @@ declare namespace accepts {
          */
         encoding(): string[];
         encoding(encodings: string[]): string | string[] | false;
-        encoding(...encodings: string[]): string | string[] | false;
+        encoding(...encodings: string[]): string | false;
 
         /**
          * Return the first accepted encoding. If nothing in `encodings` is accepted, then `false` is returned.
@@ -38,7 +38,7 @@ declare namespace accepts {
          */
         encodings(): string[];
         encodings(encodings: string[]): string | string[] | false;
-        encodings(...encodings: string[]): string | string[] | false;
+        encodings(...encodings: string[]): string | false;
 
         /**
          * Return the first accepted language. If nothing in `languages` is accepted, then `false` is returned.
@@ -47,7 +47,7 @@ declare namespace accepts {
          */
         language(): string[];
         language(languages: string[]): string | string[] | false;
-        language(...languages: string[]): string | string[] | false;
+        language(...languages: string[]): string | false;
 
         /**
          * Return the first accepted language. If nothing in `languages` is accepted, then `false` is returned.
@@ -56,7 +56,7 @@ declare namespace accepts {
          */
         languages(): string[];
         languages(languages: string[]): string | string[] | false;
-        languages(...languages: string[]): string | string[] | false;
+        languages(...languages: string[]): string | false;
 
         /**
          * Return the first accepted language. If nothing in `languages` is accepted, then `false` is returned.
@@ -65,7 +65,7 @@ declare namespace accepts {
          */
         lang(): string[];
         lang(languages: string[]): string | string[] | false;
-        lang(...languages: string[]): string | string[] | false;
+        lang(...languages: string[]): string | false;
 
         /**
          * Return the first accepted language. If nothing in `languages` is accepted, then `false` is returned.
@@ -74,7 +74,7 @@ declare namespace accepts {
          */
         langs(): string[];
         langs(languages: string[]): string | string[] | false;
-        langs(...languages: string[]): string | string[] | false;
+        langs(...languages: string[]): string | false;
 
         /**
          * Return the first accepted type (and it is returned as the same text as what appears in the `types` array). If nothing in `types` is accepted, then `false` is returned.
@@ -83,9 +83,9 @@ declare namespace accepts {
          * The `types` array can contain full MIME types or file extensions. Any value that is not a full MIME types is passed to `require('mime-types').lookup`.
          */
         type(types: string[]): string | string[] | false;
-        type(...types: string[]): string | string[] | false;
+        type(...types: string[]): string | false;
         types(types: string[]): string | string[] | false;
-        types(...types: string[]): string | string[] | false;
+        types(...types: string[]): string | false;
     }
 }