diff --git a/src/SQLParser/Node/NodeFactory.php b/src/SQLParser/Node/NodeFactory.php
index 174511f..b93e122 100644
--- a/src/SQLParser/Node/NodeFactory.php
+++ b/src/SQLParser/Node/NodeFactory.php
@@ -620,15 +620,16 @@ public static function simplify($nodes)
         */
 
         if (isset(self::$OPERATOR_TO_CLASS[$operation]) && is_subclass_of(self::$OPERATOR_TO_CLASS[$operation], 'SQLParser\Node\AbstractTwoOperandsOperator')) {
+            if (count($operands) != 2) {
+                throw new MagicQueryException('An error occured while parsing SQL statement. Invalid character found next to "'.$operation.'"');
+            }
+
             $leftOperand = array_shift($operands);
-            while (!empty($operands)) {
-                $rightOperand = array_shift($operands);
+            $rightOperand = array_shift($operands);
 
-                $instance = new self::$OPERATOR_TO_CLASS[$operation]();
-                $instance->setLeftOperand($leftOperand);
-                $instance->setRightOperand($rightOperand);
-                $leftOperand = $instance;
-            }
+            $instance = new self::$OPERATOR_TO_CLASS[$operation]();
+            $instance->setLeftOperand($leftOperand);
+            $instance->setRightOperand($rightOperand);
 
             return $instance;
         } elseif (isset(self::$OPERATOR_TO_CLASS[$operation]) && is_subclass_of(self::$OPERATOR_TO_CLASS[$operation], 'SQLParser\Node\AbstractManyInstancesOperator')) {
diff --git a/tests/Mouf/Database/MagicQueryTest.php b/tests/Mouf/Database/MagicQueryTest.php
index 9cf2cb2..c2f677b 100644
--- a/tests/Mouf/Database/MagicQueryTest.php
+++ b/tests/Mouf/Database/MagicQueryTest.php
@@ -116,6 +116,16 @@ public function testInNullException() {
         $magicQuery->build($sql, ['statuses' => NULL]);
     }
 
+    /**
+     * @expectedException \Mouf\Database\MagicQueryException
+     */
+    public function testInvalidSql() {
+        $magicQuery = new MagicQuery();
+
+        $sql = 'SELECT * FROM users WHERE date_end => :startDate';
+        $this->assertEquals('SELECT * FROM users WHERE date_end => \'2014-06-06\'', self::simplifySql($magicQuery->build($sql, ['startDate' => '2014-06-06'])));
+    }
+
     public function testWithCache()
     {
         global $db_url;