diff --git a/phpstan.neon b/phpstan.neon
index 9f4e8e2777d..756eba937d9 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -345,8 +345,3 @@ parameters:
         -
             identifier: symplify.noReference
             message: '#Use explicit return value over magic &reference#'
-
-        # known type
-        -
-            identifier: argument.type
-            message: '#Parameter \#1 \$expr of method Rector\\CodeQuality\\Rector\\BooleanOr\\RepeatedOrEqualToInArrayRector\:\:matchComparedExprAndValueExpr\(\) expects PhpParser\\Node\\Expr\\BinaryOp\\Equal\|PhpParser\\Node\\Expr\\BinaryOp\\Identical, PhpParser\\Node\\Expr given#'
diff --git a/rules/CodeQuality/Rector/BooleanOr/RepeatedOrEqualToInArrayRector.php b/rules/CodeQuality/Rector/BooleanOr/RepeatedOrEqualToInArrayRector.php
index 84d04e4ce9c..ab12f207c6b 100644
--- a/rules/CodeQuality/Rector/BooleanOr/RepeatedOrEqualToInArrayRector.php
+++ b/rules/CodeQuality/Rector/BooleanOr/RepeatedOrEqualToInArrayRector.php
@@ -166,7 +166,9 @@ private function matchComparedAndDesiredValues(BooleanOr $booleanOr): ?array
                 return null;
             }
 
-            $comparedExprAndValueExprs[] = $this->matchComparedExprAndValueExpr($currentBooleanOr->left->right);
+            /** @var Identical|Equal $leftRight */
+            $leftRight = $currentBooleanOr->left->right;
+            $comparedExprAndValueExprs[] = $this->matchComparedExprAndValueExpr($leftRight);
             $currentBooleanOr = $currentBooleanOr->left;
         }