diff --git a/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/do_not_remove_first_class_callable_param.php.inc b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/do_not_remove_first_class_callable_param.php.inc
deleted file mode 100644
index 86f66f0cd3b..00000000000
--- a/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/do_not_remove_first_class_callable_param.php.inc
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPrivateMethodParameterRector\Fixture;
-
-final class DoNotRemoveFirstClassCallableParam
-{
-    public function run()
-    {
-        $this->test(...);
-    }
-
-    private function test($foo, $bar)
-    {
-    }
-}
-
-?>
------
-<?php
-
-namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPrivateMethodParameterRector\Fixture;
-
-final class DoNotRemoveFirstClassCallableParam
-{
-    public function run()
-    {
-        $this->test(...);
-    }
-
-    private function test()
-    {
-    }
-}
-
-?>
diff --git a/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/skip_with_first_class_callable.php.inc b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/skip_with_first_class_callable.php.inc
new file mode 100644
index 00000000000..4e249b486e1
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector/Fixture/skip_with_first_class_callable.php.inc
@@ -0,0 +1,16 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPrivateMethodParameterRector\Fixture;
+
+final class SkipWithFirstClassCallable
+{
+    public function run()
+    {
+        return $this->validate(...);
+    }
+
+    private function validate(string $attribute, mixed $value): bool
+    {
+        return $value === true;
+    }
+}
diff --git a/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector.php b/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector.php
index 405e1db43ad..8b3d2677ab5 100644
--- a/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector.php
+++ b/rules/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodParameterRector.php
@@ -199,10 +199,6 @@ private function resolveCallers(ClassMethod $classMethod, string $methodName, Ob
                 return false;
             }
 
-            if ($subNode->isFirstClassCallable()) {
-                return false;
-            }
-
             $nodeToCheck = $subNode instanceof MethodCall
                 ? $subNode->var
                 : $subNode->class;