diff --git a/rules-tests/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector/Fixture/already_in_use.php.inc b/rules-tests/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector/Fixture/already_in_use.php.inc
new file mode 100644
index 00000000..97b467fb
--- /dev/null
+++ b/rules-tests/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector/Fixture/already_in_use.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\PHPUnit\Tests\AnnotationsToAttributes\Rector\ClassMethod\DataProviderAnnotationToAttributeRector\Fixture;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class AlreadyInUse extends TestCase
+{
+    /**
+    * @dataProvider someMethod()
+    */
+    public function test(): void
+    {
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\PHPUnit\Tests\AnnotationsToAttributes\Rector\ClassMethod\DataProviderAnnotationToAttributeRector\Fixture;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class AlreadyInUse extends TestCase
+{
+    #[\PHPUnit\Framework\Attributes\DataProvider('@dataProvider')]
+    public function test(): void
+    {
+    }
+}
+
+?>
diff --git a/rules/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector.php b/rules/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector.php
index e925740b..1b0b6ee4 100644
--- a/rules/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector.php
+++ b/rules/AnnotationsToAttributes/Rector/ClassMethod/DataProviderAnnotationToAttributeRector.php
@@ -11,6 +11,7 @@
 use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
 use PHPStan\Reflection\ClassReflection;
 use PHPStan\Reflection\ReflectionProvider;
+use Rector\BetterPhpDocParser\PhpDoc\DoctrineAnnotationTagValueNode;
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
 use Rector\BetterPhpDocParser\PhpDocManipulator\PhpDocTagRemover;
@@ -132,11 +133,15 @@ public function refactor(Node $node): ?Node
         }
 
         foreach ($desiredTagValueNodes as $desiredTagValueNode) {
-            if (! $desiredTagValueNode->value instanceof GenericTagValueNode) {
+            if (! $desiredTagValueNode->value instanceof GenericTagValueNode && ! $desiredTagValueNode->value instanceof DoctrineAnnotationTagValueNode) {
                 continue;
             }
 
-            $originalAttributeValue = $desiredTagValueNode->value->value;
+            if ($desiredTagValueNode->value instanceof GenericTagValueNode) {
+                $originalAttributeValue = $desiredTagValueNode->value->value;
+            } else {
+                $originalAttributeValue = $desiredTagValueNode->value->identifierTypeNode->name;
+            }
 
             $node->attrGroups[] = $this->createAttributeGroup(strtok($originalAttributeValue, " \t\n\r\0\x0B"));