diff --git a/rector.php b/rector.php
index 09fb70c3cf8..b24f7fe82f0 100644
--- a/rector.php
+++ b/rector.php
@@ -4,7 +4,6 @@
 
 use Rector\CodingStyle\Rector\String_\UseClassKeywordForClassNameResolutionRector;
 use Rector\Config\RectorConfig;
-use Rector\DeadCode\Rector\Cast\RecastingRemovalRector;
 use Rector\DeadCode\Rector\ConstFetch\RemovePhpVersionIdCheckRector;
 use Rector\Php55\Rector\String_\StringClassNameToClassConstantRector;
 
@@ -53,9 +52,4 @@
             __DIR__ . '/src/Configuration/RectorConfigBuilder.php',
             __DIR__ . '/src/Console/Notifier.php',
         ],
-
-        // on php 7.x, substr() result can return false, so force (string) is needed
-        RecastingRemovalRector::class => [
-            __DIR__ . '/rules/CodingStyle/ClassNameImport/ClassNameImportSkipVoter/ClassLikeNameClassNameImportSkipVoter.php',
-        ],
     ]);
diff --git a/rules/CodingStyle/ClassNameImport/ClassNameImportSkipVoter/ClassLikeNameClassNameImportSkipVoter.php b/rules/CodingStyle/ClassNameImport/ClassNameImportSkipVoter/ClassLikeNameClassNameImportSkipVoter.php
index 3030cdb8275..d7e9fd80045 100644
--- a/rules/CodingStyle/ClassNameImport/ClassNameImportSkipVoter/ClassLikeNameClassNameImportSkipVoter.php
+++ b/rules/CodingStyle/ClassNameImport/ClassNameImportSkipVoter/ClassLikeNameClassNameImportSkipVoter.php
@@ -6,6 +6,7 @@
 
 use PhpParser\Node;
 use PHPStan\Analyser\Scope;
+use Rector\CodingStyle\ClassNameImport\NamespaceBeforeClassNameResolver;
 use Rector\CodingStyle\ClassNameImport\ShortNameResolver;
 use Rector\CodingStyle\Contract\ClassNameImport\ClassNameImportSkipVoterInterface;
 use Rector\NodeTypeResolver\Node\AttributeKey;
@@ -24,7 +25,8 @@
 final readonly class ClassLikeNameClassNameImportSkipVoter implements ClassNameImportSkipVoterInterface
 {
     public function __construct(
-        private ShortNameResolver $shortNameResolver
+        private ShortNameResolver $shortNameResolver,
+        private NamespaceBeforeClassNameResolver $namespaceBeforeClassNameResolver
     ) {
     }
 
@@ -46,13 +48,7 @@ public function shouldSkip(File $file, FullyQualifiedObjectType $fullyQualifiedO
         $namespace = strtolower((string) $namespace);
 
         $shortNameLowered = $fullyQualifiedObjectType->getShortNameLowered();
-
-        $subClassName = substr(
-            $fullyQualifiedObjectType->getClassName(),
-            0,
-            -strlen($fullyQualifiedObjectType->getShortName()) - 1
-        );
-
+        $subClassName = $this->namespaceBeforeClassNameResolver->resolve($fullyQualifiedObjectType);
         $fullyQualifiedObjectTypeNamespace = strtolower($subClassName);
 
         foreach ($classLikeNames as $classLikeName) {
diff --git a/rules/CodingStyle/ClassNameImport/NamespaceBeforeClassNameResolver.php b/rules/CodingStyle/ClassNameImport/NamespaceBeforeClassNameResolver.php
new file mode 100644
index 00000000000..aa1ab6e466b
--- /dev/null
+++ b/rules/CodingStyle/ClassNameImport/NamespaceBeforeClassNameResolver.php
@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\CodingStyle\ClassNameImport;
+
+use Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType;
+
+final class NamespaceBeforeClassNameResolver
+{
+    public function resolve(FullyQualifiedObjectType $fullyQualifiedObjectType): string
+    {
+        $className = $fullyQualifiedObjectType->getClassName();
+        $shortName = $fullyQualifiedObjectType->getShortName();
+
+        return $className === $shortName
+            ? ''
+            : substr(
+                $className,
+                0,
+                -strlen($shortName) - 1
+        );
+    }
+}
diff --git a/tests/Issues/AutoImport/Fixture/long_namespace_in_class_name.php.inc b/tests/Issues/AutoImport/Fixture/long_namespace_in_class_name.php.inc
new file mode 100644
index 00000000000..64f4228de8c
--- /dev/null
+++ b/tests/Issues/AutoImport/Fixture/long_namespace_in_class_name.php.inc
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Foo\Bar\Baz\Bat;
+
+class LongNamespaceInClassName
+{
+    public \App\Foo\Bar\Baz\Bat\LongNamespaceInClassName $obj;
+}
+
+?>
+-----
+<?php
+
+namespace App\Foo\Bar\Baz\Bat;
+
+class LongNamespaceInClassName
+{
+    public LongNamespaceInClassName $obj;
+}
+
+?>
diff --git a/tests/Issues/AutoImport/Fixture/short_name_import_in_class_name.php.inc b/tests/Issues/AutoImport/Fixture/short_name_import_in_class_name.php.inc
new file mode 100644
index 00000000000..5b0d07b3a1c
--- /dev/null
+++ b/tests/Issues/AutoImport/Fixture/short_name_import_in_class_name.php.inc
@@ -0,0 +1,6 @@
+<?php
+
+class SkipShortNameImportInClassName
+{
+    public \SkipShortNameImportInClassName $obj;
+}