diff --git a/js/server/modules/org/arangodb/foxx/request_context.js b/js/server/modules/org/arangodb/foxx/request_context.js
index b40f3a6d77..4d5ea02471 100644
--- a/js/server/modules/org/arangodb/foxx/request_context.js
+++ b/js/server/modules/org/arangodb/foxx/request_context.js
@@ -35,7 +35,7 @@ var SwaggerDocs = require("org/arangodb/foxx/swaggerDocs").Docs,
   internal = require("org/arangodb/foxx/internals"),
   toJSONSchema = require("org/arangodb/foxx/schema").toJSONSchema,
   is = require("org/arangodb/is"),
-  BadRequest = require("http-errors").BadRequest,
+  UnprocessableEntity = require("http-errors").UnprocessableEntity,
   UnauthorizedError = require("org/arangodb/foxx/authentication").UnauthorizedError;
 
 function createBodyParamExtractor(rootElement, paramName, allowInvalid) {
@@ -101,7 +101,7 @@ function validateOrThrow(raw, schema, allowInvalid) {
   }
   var result = joi.validate(raw, schema);
   if (result.error && !allowInvalid) {
-    throw new BadRequest(result.error.message.replace(/^"value"/, 'Request body'));
+    throw new UnprocessableEntity(result.error.message.replace(/^"value"/, 'Request body'));
   }
   return result.value;
 }
diff --git a/js/server/tests/shell-foxx.js b/js/server/tests/shell-foxx.js
index 417a7f204f..0a9c563428 100644
--- a/js/server/tests/shell-foxx.js
+++ b/js/server/tests/shell-foxx.js
@@ -982,7 +982,7 @@ function DocumentationAndConstraintsSpec () {
       callback(req, res);
 
       assertFalse(called);
-      assertEqual(res.responseCode, 400);
+      assertEqual(res.responseCode, 422);
     },
 
     testSetParamForUndocumentedBodyParam: function () {