diff --git a/src/Components/Validator/RulesValidator.php b/src/Components/Validator/RulesValidator.php
index 5812ec15..aab196b4 100644
--- a/src/Components/Validator/RulesValidator.php
+++ b/src/Components/Validator/RulesValidator.php
@@ -30,7 +30,7 @@ public function getTypeIdentifier(): string
      */
     public function validate(TranslationSet $set, StorageInterface $storage): ValidationResult
     {
-        if (count($set->getAllTranslationIDs()) === 0) {
+        if ($set->getAllTranslationIDs() === []) {
             return new ValidationResult([], []);
         }
 
diff --git a/tests/phpunit/Components/Validator/RulesValidatorTest.php b/tests/phpunit/Components/Validator/RulesValidatorTest.php
index 0c2f6355..ca20e04a 100644
--- a/tests/phpunit/Components/Validator/RulesValidatorTest.php
+++ b/tests/phpunit/Components/Validator/RulesValidatorTest.php
@@ -55,7 +55,7 @@ public function testValidationWithoutTranslationsIsOkay(): void
     /**
      * @return array[]
      */
-    public function ruleValidationDataProvider()
+    public function ruleValidationDataProvider(): array
     {
         return [
             [Rules::NESTING_DEPTH, 2],