diff --git a/lib/Doctrine/Common/Annotations/DocLexer.php b/lib/Doctrine/Common/Annotations/DocLexer.php
index 7c0284b09..dbf60c0d5 100644
--- a/lib/Doctrine/Common/Annotations/DocLexer.php
+++ b/lib/Doctrine/Common/Annotations/DocLexer.php
@@ -130,10 +130,14 @@ protected function getType(&$value)
     }
 
     /** @return array{value: int|string, type:self::T_*|null, position:int} */
-    public function peek(): array
+    public function peek(): ?array
     {
         $token = parent::peek();
 
+        if ($token === null) {
+            return null;
+        }
+
         return (array) $token;
     }
 }
diff --git a/tests/Doctrine/Tests/Common/Annotations/DocLexerTest.php b/tests/Doctrine/Tests/Common/Annotations/DocLexerTest.php
index c5c541984..d32b6ad89 100644
--- a/tests/Doctrine/Tests/Common/Annotations/DocLexerTest.php
+++ b/tests/Doctrine/Tests/Common/Annotations/DocLexerTest.php
@@ -320,4 +320,9 @@ public function testTokenAdjacency(): void
         self::assertFalse($lexer->nextTokenIsAdjacent());
         self::assertFalse($lexer->moveNext());
     }
+
+    public function testItReturnsNullWhenThereIsNothingToParse(): void
+    {
+        self::assertNull((new DocLexer())->peek());
+    }
 }