diff --git a/src/Validation/ValidationRule.php b/src/Validation/ValidationRule.php
index e95a88db948..2b30dea27b8 100644
--- a/src/Validation/ValidationRule.php
+++ b/src/Validation/ValidationRule.php
@@ -134,7 +134,7 @@ public function process($value, array $providers, array $context = [])
         }
 
         if ($this->_pass) {
-            $args = array_merge([$value], $this->_pass, [$context]);
+            $args = array_values(array_merge([$value], $this->_pass, [$context]));
             $result = $callable(...$args);
         } else {
             $result = $callable($value, $context);
diff --git a/tests/TestCase/Validation/ValidationRuleTest.php b/tests/TestCase/Validation/ValidationRuleTest.php
index c0ae12fb171..0ba610381f3 100644
--- a/tests/TestCase/Validation/ValidationRuleTest.php
+++ b/tests/TestCase/Validation/ValidationRuleTest.php
@@ -67,7 +67,7 @@ public function testCustomMethods()
         $Rule = new ValidationRule(['rule' => 'willFail']);
         $this->assertFalse($Rule->process($data, $providers, $context));
 
-        $Rule = new ValidationRule(['rule' => 'willPass']);
+        $Rule = new ValidationRule(['rule' => 'willPass', 'pass' => ['key' => 'value']]);
         $this->assertTrue($Rule->process($data, $providers, $context));
 
         $Rule = new ValidationRule(['rule' => 'willFail3']);