diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73251534..81c676b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ All Notable changes to `League\Uri` will be documented in this file
 
 - issue [#91](https://github.com/thephpleague/uri/issues/91) Path modifier must be RFC3986 compliant
 - issue [#94](https://github.com/thephpleague/uri/issues/91) Improve Query parser encoder
+- `Formatter::__invoke` path must be RFC3986 compliant
 
 ### Deprecated
 
diff --git a/composer.json b/composer.json
index c7bce4fb..1d5781fb 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,8 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^1.9",
-        "phpunit/phpunit" : "^4.0"
+        "phpunit/phpunit": "^4.0",
+        "zendframework/zend-diactoros": "^1.3"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Formatter.php b/src/Formatter.php
index a4c5195b..8af6c238 100644
--- a/src/Formatter.php
+++ b/src/Formatter.php
@@ -288,9 +288,14 @@ protected function formatUri($uri)
             $scheme .= ':';
         }
 
+        $path = $uri->getPath();
+        if ('' != $uri->getAuthority() && '' != $path && '/' != $path[0]) {
+            $path = '/'.$path;
+        }
+
         return $scheme
             .$this->formatAuthority($uri)
-            .$uri->getPath()
+            .$path
             .$this->formatQuery($uri)
             .$this->formatFragment($uri)
         ;
diff --git a/test/FormatterTest.php b/test/FormatterTest.php
index eecc5cf8..44e41bed 100644
--- a/test/FormatterTest.php
+++ b/test/FormatterTest.php
@@ -9,6 +9,7 @@
 use League\Uri\Schemes\Data as DataUri;
 use League\Uri\Schemes\Http as HttpUri;
 use PHPUnit_Framework_TestCase;
+use Zend\Diactoros\Uri as DiactorosUri;
 
 /**
  * @group formatter
@@ -27,7 +28,7 @@ class FormatterTest extends PHPUnit_Framework_TestCase
 
     protected function setUp()
     {
-        $this->uri = HttpUri::createFromString(
+        $this->uri = new DiactorosUri(
             'http://login:pass@gwóźdź.pl:443/test/query.php?kingkong=toto&foo=bar+baz#doc3'
         );
         $this->formatter = new Formatter();
@@ -38,7 +39,8 @@ public function testFormatHostAscii()
         $this->assertSame(Formatter::HOST_AS_UNICODE, $this->formatter->getHostEncoding());
         $this->formatter->setHostEncoding(Formatter::HOST_AS_ASCII);
         $this->assertSame(Formatter::HOST_AS_ASCII, $this->formatter->getHostEncoding());
-        $this->assertSame('xn--gwd-hna98db.pl', $this->formatter->__invoke($this->uri->host));
+        $uri = HttpUri::createFromString($this->uri->__toString());
+        $this->assertSame('xn--gwd-hna98db.pl', $this->formatter->__invoke($uri->host));
     }
 
     /**
@@ -59,19 +61,16 @@ public function testInvalidQueryEncoding()
 
     public function testFormatWithSimpleString()
     {
-        $uri = 'https://login:pass@gwóźdź.pl:443/test/query.php?kingkong=toto&foo=bar+baz#doc3';
-        $expected = 'https://login:pass@xn--gwd-hna98db.pl/test/query.php?kingkong=toto&foo=bar+baz#doc3';
-        $uri = HttpUri::createFromString($uri);
-
+        $expected = 'http://login:pass@xn--gwd-hna98db.pl:443/test/query.php?kingkong=toto&foo=bar+baz#doc3';
         $this->formatter->setQuerySeparator('&');
         $this->formatter->setHostEncoding(Formatter::HOST_AS_ASCII);
-        $this->assertSame($expected, $this->formatter->__invoke($uri));
+        $this->assertSame($expected, $this->formatter->__invoke($this->uri));
     }
 
     public function testFormatWithZeroes()
     {
         $expected = 'https://example.com/image.jpeg?0#0';
-        $uri = HttpUri::createFromString('https://example.com/image.jpeg?0#0');
+        $uri = new DiactorosUri('https://example.com/image.jpeg?0#0');
         $this->assertSame($expected, $this->formatter->__invoke($uri));
     }
 
@@ -84,7 +83,8 @@ public function testFormatComponent()
     public function testFormatHostUnicode()
     {
         $this->formatter->setHostEncoding(Formatter::HOST_AS_UNICODE);
-        $this->assertSame('gwóźdź.pl', $this->formatter->__invoke($this->uri->host));
+        $uri = HttpUri::createFromString($this->uri->__toString());
+        $this->assertSame('gwóźdź.pl', $this->formatter->__invoke($uri->host));
     }
 
     public function testFormatQueryRFC1738()
@@ -92,13 +92,15 @@ public function testFormatQueryRFC1738()
         $this->assertSame(PHP_QUERY_RFC3986, $this->formatter->getQueryEncoding());
         $this->formatter->setQueryEncoding(PHP_QUERY_RFC1738);
         $this->assertSame(PHP_QUERY_RFC1738, $this->formatter->getQueryEncoding());
-        $this->assertSame('kingkong=toto&foo=bar%2Bbaz', $this->formatter->__invoke($this->uri->query));
+        $uri = HttpUri::createFromString($this->uri->__toString());
+        $this->assertSame('kingkong=toto&foo=bar%2Bbaz', $this->formatter->__invoke($uri->query));
     }
 
     public function testFormatQueryRFC3986()
     {
         $this->formatter->setQueryEncoding(PHP_QUERY_RFC3986);
-        $this->assertSame('kingkong=toto&foo=bar+baz', $this->formatter->__invoke($this->uri->query));
+        $uri = HttpUri::createFromString($this->uri->__toString());
+        $this->assertSame('kingkong=toto&foo=bar+baz', $this->formatter->__invoke($uri->query));
     }
 
     public function testFormatQueryWithSeparator()
@@ -106,7 +108,8 @@ public function testFormatQueryWithSeparator()
         $this->assertSame('&', $this->formatter->getQuerySeparator());
         $this->formatter->setQuerySeparator('&');
         $this->assertSame('&', $this->formatter->getQuerySeparator());
-        $this->assertSame('kingkong=toto&foo=bar+baz', $this->formatter->__invoke($this->uri->query));
+        $uri = HttpUri::createFromString($this->uri->__toString());
+        $this->assertSame('kingkong=toto&foo=bar+baz', $this->formatter->__invoke($uri->query));
     }
 
     public function testFormat()
@@ -146,7 +149,7 @@ public function testFormatterFailed()
     public function testFormatterPreservedQuery()
     {
         $expected = 'http://example.com';
-        $uri = HttpUri::createFromString($expected);
+        $uri = new DiactorosUri($expected);
         $this->formatter->preserveQuery(true);
         $this->assertSame($expected, (string) $uri);
         $this->assertSame('http://example.com?', $this->formatter->__invoke($uri));
@@ -155,9 +158,15 @@ public function testFormatterPreservedQuery()
     public function testFormatterPreservedFragment()
     {
         $expected = 'http://example.com';
-        $uri = HttpUri::createFromString($expected);
+        $uri = new DiactorosUri($expected);
         $this->formatter->preserveFragment(true);
         $this->assertSame($expected, (string) $uri);
         $this->assertSame('http://example.com#', $this->formatter->__invoke($uri));
     }
+
+    public function testValidFormatterRespectRFC3986()
+    {
+        $psr7uri = (new DiactorosUri('http://bébé.be'))->withPath('foo/bar');
+        $this->assertSame('http://bébé.be/foo/bar', (string) $this->formatter->__invoke($psr7uri));
+    }
 }
diff --git a/test/Modifiers/PathModifierTest.php b/test/Modifiers/PathModifierTest.php
index f361451d..1bf8d8b2 100644
--- a/test/Modifiers/PathModifierTest.php
+++ b/test/Modifiers/PathModifierTest.php
@@ -111,9 +111,9 @@ public function testAppendProcess($segment, $key, $append, $prepend, $replace)
      */
     public function testAppendProcessWithRelativePath($uri, $segment, $expected)
     {
-        $modifier = new AppendSegment('new-segment');
-        $uri = HttpUri::createFromString('http://www.example.com');
-        $this->assertSame('http://www.example.com/new-segment', (string) $modifier($uri));
+        $modifier = new AppendSegment($segment);
+        $uri = HttpUri::createFromString($uri);
+        $this->assertSame($expected, (string) $modifier($uri));
     }
 
     public function validAppendPathProvider()