diff --git a/RouteDescriber/FosRestDescriber.php b/RouteDescriber/FosRestDescriber.php
index b4015df..e64303e 100644
--- a/RouteDescriber/FosRestDescriber.php
+++ b/RouteDescriber/FosRestDescriber.php
@@ -40,10 +40,16 @@ final class FosRestDescriber implements RouteDescriberInterface
         foreach ($this->getOperations($api, $route) as $operation) {
             foreach ($annotations as $annotation) {
                 $in = $annotation instanceof QueryParam ? 'query' : 'formData';
-                $parameter = $operation->getParameters()->get($annotation->getName(), $in);
+                if ($annotation instanceof QueryParam) {
+                    $parameter = $operation->getParameters()->get($annotation->getName(), 'query');
+                    $parameter->setAllowEmptyValue($annotation->nullable && $annotation->allowBlank);
+                } else {
+                    $body = $operation->getParameters()->get('body', 'body')->getSchema();
+                    $body->setType('object');
+                    $parameter = $body->getProperties()->get($annotation->getName());
+                }
 
                 $parameter->setRequired(!$annotation->nullable && $annotation->strict);
-                $parameter->setAllowEmptyValue($annotation->nullable && $annotation->allowBlank);
                 $parameter->setDefault($annotation->getDefault());
                 if (null === $parameter->getType()) {
                     $parameter->setType($annotation->map ? 'array' : 'string');
diff --git a/Tests/Functional/FunctionalTest.php b/Tests/Functional/FunctionalTest.php
index 64dfbaf..e09a096 100644
--- a/Tests/Functional/FunctionalTest.php
+++ b/Tests/Functional/FunctionalTest.php
@@ -124,20 +124,23 @@ class FunctionalTest extends WebTestCase
 
         $parameters = $operation->getParameters();
         $this->assertTrue($parameters->has('foo', 'query'));
-        $this->assertTrue($parameters->has('bar', 'formData'));
-        $this->assertTrue($parameters->has('baz', 'formData'));
+        $this->assertTrue($parameters->has('body', 'body'));
+        $body = $parameters->get('body', 'body')->getSchema()->getProperties();
+
+        $this->assertTrue($body->has('bar'));
+        $this->assertTrue($body->has('baz'));
 
         $fooParameter = $parameters->get('foo', 'query');
         $this->assertNotNull($fooParameter->getPattern());
         $this->assertEquals('\d+', $fooParameter->getPattern());
         $this->assertNull($fooParameter->getFormat());
 
-        $barParameter = $parameters->get('bar', 'formData');
+        $barParameter = $body->get('bar');
         $this->assertNotNull($barParameter->getPattern());
         $this->assertEquals('\d+', $barParameter->getPattern());
         $this->assertNull($barParameter->getFormat());
 
-        $bazParameter = $parameters->get('baz', 'formData');
+        $bazParameter = $body->get('baz');
         $this->assertNotNull($bazParameter->getFormat());
         $this->assertEquals('IsTrue', $bazParameter->getFormat());
         $this->assertNull($bazParameter->getPattern());