diff --git a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
index a7a6071ab5b5..d62ec0ee9513 100644
--- a/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
+++ b/src/Illuminate/Validation/Concerns/ValidatesAttributes.php
@@ -1160,6 +1160,10 @@ public function validateIpv6($attribute, $value)
      */
     public function validateJson($attribute, $value)
     {
+        if (is_array($value)) {
+            return false;
+        }
+
         if (! is_scalar($value) && ! method_exists($value, '__toString')) {
             return false;
         }
diff --git a/tests/Validation/ValidationValidatorTest.php b/tests/Validation/ValidationValidatorTest.php
index b6c6ab2281ae..a176ce42a055 100755
--- a/tests/Validation/ValidationValidatorTest.php
+++ b/tests/Validation/ValidationValidatorTest.php
@@ -1510,6 +1510,10 @@ public function testValidateJson()
         $trans = $this->getIlluminateArrayTranslator();
         $v = new Validator($trans, ['foo' => '{"name":"John","age":"34"}'], ['foo' => 'json']);
         $this->assertTrue($v->passes());
+
+        $trans = $this->getIlluminateArrayTranslator();
+        $v = new Validator($trans, ['foo' => ['array']], ['foo' => 'json']);
+        $this->assertFalse($v->passes());
     }
 
     public function testValidateBoolean()