diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70ed21894..17ce18c13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 - Add support for `immutable_date:*` and `immutable_datetime:*` casts. [#1380 / thekonz](https://github.com/barryvdh/laravel-ide-helper/pull/1380)
+- Add support for attribute accessors without return type declared in closures. [#1439 / EmanueleCoppola](https://github.com/barryvdh/laravel-ide-helper/pull/1439)
 
 2023-02-04, 2.13.0
 ------------------
diff --git a/src/Console/ModelsCommand.php b/src/Console/ModelsCommand.php
index 9f9931f0c..5429747d7 100644
--- a/src/Console/ModelsCommand.php
+++ b/src/Console/ModelsCommand.php
@@ -1181,24 +1181,42 @@ protected function getAttributeReturnType(Model $model, \ReflectionMethod $refle
         $attribute = $reflectionMethod->invoke($model);
 
         return collect([
-            'get' => $attribute->get ? optional(new \ReflectionFunction($attribute->get))->getReturnType() : null,
-            'set' => $attribute->set ? optional(new \ReflectionFunction($attribute->set))->getReturnType() : null,
+            'get' => $attribute->get,
+            'set' => $attribute->set,
         ])
+            ->map(function ($function, $functionName) {
+                if (!$function) {
+                    return null;
+                }
+
+                $reflectionFunction = new \ReflectionFunction($function);
+                $functionReturnType = optional($reflectionFunction)->getReturnType();
+
+                if (!$functionReturnType) {
+                    $functionReturnType = 'mixed';
+                }
+
+                return $functionReturnType;
+            })
             ->filter()
             ->map(function ($type) {
-                if ($type instanceof \ReflectionUnionType) {
-                    $types = collect($type->getTypes())
-                        /** @var ReflectionType $reflectionType */
-                        ->map(function ($reflectionType) {
-                            return collect($this->extractReflectionTypes($reflectionType));
-                        })
-                        ->flatten();
+                if ($type === 'mixed') {
+                    $types = collect(['mixed']);
                 } else {
-                    $types = collect($this->extractReflectionTypes($type));
-                }
+                    if ($type instanceof \ReflectionUnionType) {
+                        $types = collect($type->getTypes())
+                            /** @var ReflectionType $reflectionType */
+                            ->map(function ($reflectionType) {
+                                return collect($this->extractReflectionTypes($reflectionType));
+                            })
+                            ->flatten();
+                    } else {
+                        $types = collect($this->extractReflectionTypes($type));
+                    }
 
-                if ($type->allowsNull()) {
-                    $types->push('null');
+                    if ($type->allowsNull()) {
+                        $types->push('null');
+                    }
                 }
 
                 return $types->join('|');
diff --git a/tests/Console/ModelsCommand/Attributes/Models/Simple.php b/tests/Console/ModelsCommand/Attributes/Models/Simple.php
index f64861b44..c9e60d924 100644
--- a/tests/Console/ModelsCommand/Attributes/Models/Simple.php
+++ b/tests/Console/ModelsCommand/Attributes/Models/Simple.php
@@ -21,6 +21,18 @@ function (?string $name): ?string {
         );
     }
 
+    protected function attributeWithoutReturnTypes(): Attribute
+    {
+        return new Attribute(
+            function (?string $name) {
+                return $name;
+            },
+            function (?string $name) {
+                return $name === null ? null : ucfirst($name);
+            }
+        );
+    }
+
     /**
      * ide-helper does not recognize this method being an Attribute
      * because the method has no actual return type;
diff --git a/tests/Console/ModelsCommand/Attributes/__snapshots__/Test__test__1.php b/tests/Console/ModelsCommand/Attributes/__snapshots__/Test__test__1.php
index df6863950..a2df4533f 100644
--- a/tests/Console/ModelsCommand/Attributes/__snapshots__/Test__test__1.php
+++ b/tests/Console/ModelsCommand/Attributes/__snapshots__/Test__test__1.php
@@ -11,6 +11,7 @@
  * Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\Attributes\Models\Simple
  *
  * @property integer $id
+ * @property mixed $attribute_without_return_types
  * @property string|null $name
  * @method static \Illuminate\Database\Eloquent\Builder|Simple newModelQuery()
  * @method static \Illuminate\Database\Eloquent\Builder|Simple newQuery()
@@ -32,6 +33,18 @@ function (?string $name): ?string {
         );
     }
 
+    protected function attributeWithoutReturnTypes(): Attribute
+    {
+        return new Attribute(
+            function (?string $name) {
+                return $name;
+            },
+            function (?string $name) {
+                return $name === null ? null : ucfirst($name);
+            }
+        );
+    }
+
     /**
      * ide-helper does not recognize this method being an Attribute
      * because the method has no actual return type;