diff --git a/src/Illuminate/Collections/Arr.php b/src/Illuminate/Collections/Arr.php
index c217ea8e482c..731fa2949dec 100644
--- a/src/Illuminate/Collections/Arr.php
+++ b/src/Illuminate/Collections/Arr.php
@@ -2,6 +2,7 @@
 
 namespace Illuminate\Support;
 
+use ArgumentCountError;
 use ArrayAccess;
 use Illuminate\Support\Traits\Macroable;
 use InvalidArgumentException;
@@ -555,7 +556,11 @@ public static function map(array $array, callable $callback)
     {
         $keys = array_keys($array);
 
-        $items = array_map($callback, $array, $keys);
+        try {
+            $items = array_map($callback, $array, $keys);
+        } catch (ArgumentCountError) {
+            $items = array_map($callback, $array);
+        }
 
         return array_combine($keys, $items);
     }
diff --git a/tests/Support/SupportArrTest.php b/tests/Support/SupportArrTest.php
index d09fe6cd9a91..a4f5bf0ce6e4 100644
--- a/tests/Support/SupportArrTest.php
+++ b/tests/Support/SupportArrTest.php
@@ -632,6 +632,15 @@ public function testMap()
         $this->assertEquals(['first' => 'taylor', 'last' => 'otwell'], $data);
     }
 
+    public function testMapByReference()
+    {
+        $data = ['first' => 'taylor', 'last' => 'otwell'];
+        $mapped = Arr::map($data, 'strrev');
+
+        $this->assertEquals(['first' => 'rolyat', 'last' => 'llewto'], $mapped);
+        $this->assertEquals(['first' => 'taylor', 'last' => 'otwell'], $data);
+    }
+
     public function testPrepend()
     {
         $array = Arr::prepend(['one', 'two', 'three', 'four'], 'zero');