diff --git a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Configuration.php b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Configuration.php
index 4420ef3d0e46c..bc46e4f447912 100644
--- a/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Configuration.php
+++ b/src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Configuration.php
@@ -170,6 +170,10 @@ public function tolerates(array $deprecationGroups)
      */
     public function isBaselineDeprecation(Deprecation $deprecation)
     {
+        if ($deprecation->isLegacy()) {
+            return false;
+        }
+
         if ($deprecation->originatesFromAnObject()) {
             $location = $deprecation->originatingClass().'::'.$deprecation->originatingMethod();
         } else {