diff --git a/rules/TypeDeclarationDocblocks/Rector/Property/MergePhpstanDocTagIntoNativeRector.php b/rules/TypeDeclarationDocblocks/Rector/Property/MergePhpstanDocTagIntoNativeRector.php
index bc5a5293114..7855dc2d6de 100644
--- a/rules/TypeDeclarationDocblocks/Rector/Property/MergePhpstanDocTagIntoNativeRector.php
+++ b/rules/TypeDeclarationDocblocks/Rector/Property/MergePhpstanDocTagIntoNativeRector.php
@@ -4,6 +4,7 @@
 
 namespace Rector\TypeDeclarationDocblocks\Rector\Property;
 
+use PhpParser\Comment\Doc;
 use PhpParser\Node;
 use PhpParser\Node\Param;
 use PhpParser\Node\Stmt\ClassConst;
@@ -87,6 +88,11 @@ public function getNodeTypes(): array
      */
     public function refactor(Node $node): ?Node
     {
+        // @phpstan-* tags can only live in a docblock; skip nodes without one
+        if (!$node->getDocComment() instanceof Doc) {
+            return null;
+        }
+
         $phpDocInfo = $this->phpDocInfoFactory->createFromNode($node);
         if (! $phpDocInfo instanceof PhpDocInfo) {
             return null;