diff --git a/rules-tests/CodeQuality/Rector/If_/CombineIfRector/Fixture/with_negation_binaryop_previous_if.php.inc b/rules-tests/CodeQuality/Rector/If_/CombineIfRector/Fixture/with_negation_binaryop_previous_if.php.inc
new file mode 100644
index 00000000000..920b5b7795a
--- /dev/null
+++ b/rules-tests/CodeQuality/Rector/If_/CombineIfRector/Fixture/with_negation_binaryop_previous_if.php.inc
@@ -0,0 +1,31 @@
+<?php
+
+namespace Rector\Tests\CodeQuality\Rector\If_\CombineIfRector\Fixture;
+
+class WithNegationBinaryOpPreviousIf
+{
+    public function run($a, $b, $data, $field)
+    {
+        if (!($a && $b)) {
+            if (isset($data[$field])) {
+            }
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\CodeQuality\Rector\If_\CombineIfRector\Fixture;
+
+class WithNegationBinaryOpPreviousIf
+{
+    public function run($a, $b, $data, $field)
+    {
+        if (!($a && $b) && isset($data[$field])) {
+        }
+    }
+}
+
+?>
diff --git a/rules/CodeQuality/Rector/If_/CombineIfRector.php b/rules/CodeQuality/Rector/If_/CombineIfRector.php
index 17c81ccb391..b3e13d6f28c 100644
--- a/rules/CodeQuality/Rector/If_/CombineIfRector.php
+++ b/rules/CodeQuality/Rector/If_/CombineIfRector.php
@@ -7,6 +7,7 @@
 use PhpParser\Node;
 use PhpParser\Node\Expr\BinaryOp;
 use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
+use PhpParser\Node\Expr\BooleanNot;
 use PhpParser\Node\Stmt\Else_;
 use PhpParser\Node\Stmt\If_;
 use PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode;
@@ -102,6 +103,10 @@ public function refactor(Node $node): ?Node
             $subIf->cond->left->setAttribute(AttributeKey::ORIGINAL_NODE, null);
         }
 
+        if ($node->cond instanceof BooleanNot && $node->cond->expr instanceof BinaryOp) {
+            $node->cond->expr->setAttribute(AttributeKey::ORIGINAL_NODE, null);
+        }
+
         $node->cond = new BooleanAnd($node->cond, $subIf->cond);
 
         $node->stmts = $subIf->stmts;