diff --git a/src/Illuminate/Database/Eloquent/Casts/AsEnumArrayObject.php b/src/Illuminate/Database/Eloquent/Casts/AsEnumArrayObject.php
index f5f0571bca50..7909b197b87b 100644
--- a/src/Illuminate/Database/Eloquent/Casts/AsEnumArrayObject.php
+++ b/src/Illuminate/Database/Eloquent/Casts/AsEnumArrayObject.php
@@ -30,7 +30,7 @@ public function __construct(array $arguments)
 
             public function get($model, $key, $value, $attributes)
             {
-                if (! isset($attributes[$key]) || is_null($attributes[$key])) {
+                if (! isset($attributes[$key])) {
                     return;
                 }
 
diff --git a/src/Illuminate/Database/Eloquent/Casts/AsEnumCollection.php b/src/Illuminate/Database/Eloquent/Casts/AsEnumCollection.php
index ff632ed223cd..926881287ef7 100644
--- a/src/Illuminate/Database/Eloquent/Casts/AsEnumCollection.php
+++ b/src/Illuminate/Database/Eloquent/Casts/AsEnumCollection.php
@@ -30,7 +30,7 @@ public function __construct(array $arguments)
 
             public function get($model, $key, $value, $attributes)
             {
-                if (! isset($attributes[$key]) || is_null($attributes[$key])) {
+                if (! isset($attributes[$key])) {
                     return;
                 }