diff --git a/src/Composer/DependencyResolver/Problem.php b/src/Composer/DependencyResolver/Problem.php
index 073f64e2d..0dcc938fd 100644
--- a/src/Composer/DependencyResolver/Problem.php
+++ b/src/Composer/DependencyResolver/Problem.php
@@ -79,7 +79,6 @@ class Problem
             reset($reasons);
             $reason = current($reasons);
 
-            $rule = $reason['rule'];
             $job = $reason['job'];
 
             if (isset($job['constraint'])) {