diff --git a/lib/Doctrine/ORM/Query/Parser.php b/lib/Doctrine/ORM/Query/Parser.php
index 0233e4c5e..bbb91c040 100644
--- a/lib/Doctrine/ORM/Query/Parser.php
+++ b/lib/Doctrine/ORM/Query/Parser.php
@@ -1333,18 +1333,43 @@ class Parser
     }
 
     /**
-     * OrderByItem ::= (ResultVariable | SingleValuedPathExpression) ["ASC" | "DESC"]
+     * OrderByItem ::= (
+     *      SimpleArithmeticExpression | SingleValuedPathExpression |
+     *      ScalarExpression | ResultVariable
+     * ) ["ASC" | "DESC"]
      *
      * @return \Doctrine\ORM\Query\AST\OrderByItem
      */
     public function OrderByItem()
     {
-        $type = 'ASC';
 
-        // We need to check if we are in a ResultVariable or StateFieldPathExpression
+        $this->_lexer->peek(); // lookahead => '.'
+        $this->_lexer->peek(); // lookahead => token after '.'
+        $peek = $this->_lexer->peek(); // lookahead => token after the token after the '.'
+        $this->_lexer->resetPeek();
         $glimpse = $this->_lexer->glimpse();
-        $expr    = ($glimpse['type'] != Lexer::T_DOT) ? $this->ResultVariable() : $this->SingleValuedPathExpression();
 
+        switch (true) {
+
+            case ($this->_isMathOperator($peek)):
+                $expr = $this->SimpleArithmeticExpression();
+
+                break;
+            case ($glimpse['type'] === Lexer::T_DOT):
+                $expr = $this->SingleValuedPathExpression();
+                
+                break;
+            case ($this->_lexer->peek() && $this->_isMathOperator($this->_peekBeyondClosingParenthesis())):
+                $expr = $this->ScalarExpression();
+
+                break;
+            default:
+                $expr = $this->ResultVariable();
+
+                break;
+        }
+
+        $type = 'ASC';
         $item = new AST\OrderByItem($expr);
 
         switch (true) {
diff --git a/lib/Doctrine/ORM/Query/SqlWalker.php b/lib/Doctrine/ORM/Query/SqlWalker.php
index b04d6e8d3..da7867640 100644
--- a/lib/Doctrine/ORM/Query/SqlWalker.php
+++ b/lib/Doctrine/ORM/Query/SqlWalker.php
@@ -780,8 +780,8 @@ class SqlWalker implements TreeWalker
     public function walkOrderByItem($orderByItem)
     {
         $expr = $orderByItem->expression;
-        $sql  = ($expr instanceof AST\PathExpression)
-            ? $this->walkPathExpression($expr)
+        $sql  = ($expr instanceof AST\Node)
+            ? $expr->dispatch($this)
             : $this->walkResultVariable($this->_queryComponents[$expr]['token']['value']);
 
         return $sql . ' ' . strtoupper($orderByItem->type);
diff --git a/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php b/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
index 5b750462c..40bbbaab7 100644
--- a/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
+++ b/tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php
@@ -1571,6 +1571,26 @@ class SelectSqlGenerationTest extends \Doctrine\Tests\OrmTestCase
             "SELECT c0_.id AS id0, c0_.completed AS completed1, c0_.fixPrice AS fixPrice2, c1_.id AS id3, c1_.completed AS completed4, c1_.hoursWorked AS hoursWorked5, c1_.pricePerHour AS pricePerHour6, c1_.maxPrice AS maxPrice7, c0_.discr AS discr8, c1_.discr AS discr9 FROM company_contracts c0_, company_contracts c1_ WHERE (c0_.discr IN ('fix') AND c1_.discr IN ('flexible', 'flexultra'))"
         );
     }
+
+    /**
+     * @group DDC-775
+     */
+    public function testOrderByClauseSupportsSimpleArithmeticExpression()
+    {
+        $this->assertSqlGeneration(
+            'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY u.id + 1 ',
+            'SELECT c0_.id AS id0, c0_.status AS status1, c0_.username AS username2, c0_.name AS name3 FROM cms_users c0_ ORDER BY c0_.id + 1 ASC'
+        );
+        $this->assertSqlGeneration(
+            'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY ( ( (u.id + 1) * (u.id - 1) ) / 2)',
+            'SELECT c0_.id AS id0, c0_.status AS status1, c0_.username AS username2, c0_.name AS name3 FROM cms_users c0_ ORDER BY (c0_.id + 1) * (c0_.id - 1) / 2 ASC'
+        );
+        $this->assertSqlGeneration(
+            'SELECT u FROM Doctrine\Tests\Models\CMS\CmsUser u ORDER BY ((u.id + 5000) * u.id + 3) ',
+            'SELECT c0_.id AS id0, c0_.status AS status1, c0_.username AS username2, c0_.name AS name3 FROM cms_users c0_ ORDER BY (c0_.id + 5000) * c0_.id + 3 ASC'
+        );
+    }
+
 }