diff --git a/src/Toml.php b/src/Toml.php
index 4ef0926..bd426d5 100755
--- a/src/Toml.php
+++ b/src/Toml.php
@@ -77,7 +77,6 @@ class Toml
 
         // Split lines
         $aToml = explode("\n", $toml);
-        print_r($aToml);
 
         //foreach($aToml as $line)
         for($ln = 0; $ln < count($aToml); $ln++)
@@ -310,7 +309,7 @@ class Toml
                     $openLString = !$openLString;
                 }
             }
-            elseif($toml[$i] == "\\" && !in_array($toml[$i+1], array('0', 't', 'n', 'r', "u", '"', "\\")))
+            elseif($toml[$i] == "\\" && !in_array($toml[$i+1], array('0', 't', 'n', 'r', "u", "U", '"', "\\")))
             {
                 // Reserved special characters inside strings should produce error
                 if($openString)
diff --git a/toml-test/debug.php b/toml-test/debug.php
new file mode 100644
index 0000000..49a1a74
--- /dev/null
+++ b/toml-test/debug.php
@@ -0,0 +1,10 @@
+<?php
+
+require('../src/Toml.php');
+
+$toml = "answer = 42
+neganswer = -42";
+
+$result = Toml::parse($toml);
+
+echo json_encode($result);