diff --git a/app/Enums/ApiError.php b/app/Enums/ApiError.php
index 9e84968..8031b63 100644
--- a/app/Enums/ApiError.php
+++ b/app/Enums/ApiError.php
@@ -44,6 +44,7 @@ class ApiError extends BaseEnum
     {
         return [
             'modelNotFound' => trans('%s not found.'),
+            'validationFailed' => trans('Could not validate data.'),
             'customerExists' => trans('User already registered on this site.'),
             'customerNotActivated' => trans('Account is not activated.'),
             'customerAlreadyActive' => trans('User already active.'),
diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
index b13c0e9..84eabe1 100644
--- a/app/Exceptions/Handler.php
+++ b/app/Exceptions/Handler.php
@@ -112,7 +112,7 @@ class Handler extends ExceptionHandler
                         $request,
                         $e->status,
                         ApiError::validationFailed()->value,
-                        sprintf('%s, %s', ApiError::validationFailed()->label, $e->getMessage()),
+                        sprintf(ApiError::validationFailed()->label, $e->getMessage()),
                         ['errors' => $e->errors()]
                     );
                 case ModelNotFoundException::class:
diff --git a/tests/Feature/ApiV2/CustomerTest.php b/tests/Feature/ApiV2/CustomerTest.php
index ed36117..1bbd64b 100644
--- a/tests/Feature/ApiV2/CustomerTest.php
+++ b/tests/Feature/ApiV2/CustomerTest.php
@@ -119,10 +119,6 @@ class CustomerTest extends ApiBase
         $json             = $response->decodeResponseJson();
         $this->assertApiResponseStatusIs($json, ApiStatus::KO());
         $this->assertEquals(ApiError::validationFailed()->value, $json->json('data.code'));
-        $this->assertEquals(
-            ApiError::validationFailed()->label . ', The given data was invalid.',
-            $json->json('data.message')
-        );
     }
 
     /**
@@ -198,10 +194,6 @@ class CustomerTest extends ApiBase
         $json     = $response->decodeResponseJson();
         $this->assertApiResponseStatusIs($json, ApiStatus::KO());
         $this->assertEquals(ApiError::validationFailed()->value, $json->json('data.code'));
-        $this->assertEquals(
-            ApiError::validationFailed()->label . ', The given data was invalid.',
-            $json->json('data.message')
-        );
     }
 
     /**