diff --git a/lib/Twig/Extension/Core.php b/lib/Twig/Extension/Core.php
index f5d2acd8d..a0dbfc949 100644
--- a/lib/Twig/Extension/Core.php
+++ b/lib/Twig/Extension/Core.php
@@ -189,8 +189,8 @@ class Twig_Extension_Core extends Twig_Extension
         return array(
             array(
                 'not' => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Not'),
-                '-'   => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Neg'),
-                '+'   => array('precedence' => 50, 'class' => 'Twig_Node_Expression_Unary_Pos'),
+                '-'   => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Neg'),
+                '+'   => array('precedence' => 500, 'class' => 'Twig_Node_Expression_Unary_Pos'),
             ),
             array(
                 'b-and'  => array('precedence' => 5, 'class' => 'Twig_Node_Expression_Binary_BitwiseAnd', 'associativity' => Twig_ExpressionParser::OPERATOR_LEFT),
diff --git a/test/Twig/Tests/Fixtures/expressions/unary_precedence.test b/test/Twig/Tests/Fixtures/expressions/unary_precedence.test
new file mode 100644
index 000000000..cc6eef8d2
--- /dev/null
+++ b/test/Twig/Tests/Fixtures/expressions/unary_precedence.test
@@ -0,0 +1,14 @@
+--TEST--
+Twig unary operators precedence
+--TEMPLATE--
+{{ -1 - 1 }}
+{{ -1 - -1 }}
+{{ -1 * -1 }}
+{{ 4 / -1 * 5 }}
+--DATA--
+return array()
+--EXPECT--
+-2
+0
+1
+-20