diff --git a/src/Uri.php b/src/Uri.php
index 964ba85ee..449bc086e 100644
--- a/src/Uri.php
+++ b/src/Uri.php
@@ -301,12 +301,17 @@ public function parse($uri)
                 $this->setUserInfo($userInfo);
             }
 
-            $nMatches = preg_match('/:[\d]{1,5}$/', $authority, $matches);
+            $nMatches = preg_match('/:[\d]{0,5}$/', $authority, $matches);
             if ($nMatches === 1) {
                 $portLength = strlen($matches[0]);
                 $port = substr($matches[0], 1);
 
-                $this->setPort((int) $port);
+                // If authority ends with colon, port will be empty string.
+                // Remove the colon from authority, but keeps port null
+                if ($port !== '') {
+                    $this->setPort((int) $port);
+                }
+
                 $authority = substr($authority, 0, -$portLength);
             }
 
diff --git a/test/UriTest.php b/test/UriTest.php
index 16064bf15..42791dafc 100644
--- a/test/UriTest.php
+++ b/test/UriTest.php
@@ -1371,4 +1371,14 @@ public function testReservedCharsInPathUnencoded()
             $uri->toString()
         );
     }
+        
+    public function testUriWithEndingColonWithoutPort()
+    {
+        $uriString = 'http://www.example.com:';
+        $uri = new Uri($uriString);
+        
+        $this->assertSame($uri->getHost(), 'www.example.com');
+        $this->assertSame($uri->getPort(), null);
+        
+    }
 }