diff --git a/src/Symfony/Component/PropertyInfo/Extractor/PhpStanExtractor.php b/src/Symfony/Component/PropertyInfo/Extractor/PhpStanExtractor.php
index 2f169690bff12..0596eb24fc20e 100644
--- a/src/Symfony/Component/PropertyInfo/Extractor/PhpStanExtractor.php
+++ b/src/Symfony/Component/PropertyInfo/Extractor/PhpStanExtractor.php
@@ -233,6 +233,14 @@ private function getDocBlockFromProperty(string $class, string $property): ?arra
             return null;
         }
 
+        $reflector = $reflectionProperty->getDeclaringClass();
+
+        foreach ($reflector->getTraits() as $trait) {
+            if ($trait->hasProperty($property)) {
+                return $this->getDocBlockFromProperty($trait->getName(), $property);
+            }
+        }
+
         if (null === $rawDocNode = $reflectionProperty->getDocComment() ?: null) {
             return null;
         }
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpStanExtractorTest.php b/src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpStanExtractorTest.php
index d8fa9b9192c51..fd11fcbeb8c63 100644
--- a/src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpStanExtractorTest.php
+++ b/src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpStanExtractorTest.php
@@ -19,6 +19,7 @@
 use Symfony\Component\PropertyInfo\Tests\Fixtures\Dummy;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\ParentDummy;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\RootDummy\RootDummyItem;
+use Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\AnotherNamespace\DummyInAnotherNamespace;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\DummyUsedInTrait;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\DummyUsingTrait;
 use Symfony\Component\PropertyInfo\Type;
@@ -311,6 +312,7 @@ public static function propertiesDefinedByTraitsProvider(): array
             ['propertyInTraitPrimitiveType', new Type(Type::BUILTIN_TYPE_STRING)],
             ['propertyInTraitObjectSameNamespace', new Type(Type::BUILTIN_TYPE_OBJECT, false, DummyUsedInTrait::class)],
             ['propertyInTraitObjectDifferentNamespace', new Type(Type::BUILTIN_TYPE_OBJECT, false, Dummy::class)],
+            ['dummyInAnotherNamespace', new Type(Type::BUILTIN_TYPE_OBJECT, false, DummyInAnotherNamespace::class)],
         ];
     }
 
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyInAnotherNamespace.php b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyInAnotherNamespace.php
new file mode 100644
index 0000000000000..5ae6b60b59731
--- /dev/null
+++ b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyInAnotherNamespace.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\AnotherNamespace;
+
+class DummyInAnotherNamespace
+{
+}
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyTraitInAnotherNamespace.php b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyTraitInAnotherNamespace.php
new file mode 100644
index 0000000000000..0cb6decf6daa5
--- /dev/null
+++ b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/AnotherNamespace/DummyTraitInAnotherNamespace.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\AnotherNamespace;
+
+trait DummyTraitInAnotherNamespace
+{
+    /**
+     * @var DummyInAnotherNamespace
+     */
+    public $dummyInAnotherNamespace;
+}
diff --git a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/DummyUsingTrait.php b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/DummyUsingTrait.php
index bfd75a36f41c1..d978d5f184aa4 100644
--- a/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/DummyUsingTrait.php
+++ b/src/Symfony/Component/PropertyInfo/Tests/Fixtures/TraitUsage/DummyUsingTrait.php
@@ -11,7 +11,10 @@
 
 namespace Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage;
 
+use Symfony\Component\PropertyInfo\Tests\Fixtures\TraitUsage\AnotherNamespace\DummyTraitInAnotherNamespace;
+
 class DummyUsingTrait
 {
     use DummyTrait;
+    use DummyTraitInAnotherNamespace;
 }

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