diff --git a/src/AnnotationService.php b/src/AnnotationService.php
index a498a5f..5f78ea9 100755
--- a/src/AnnotationService.php
+++ b/src/AnnotationService.php
@@ -154,6 +154,8 @@ public function registerController($controllerName, Controller $defaultControlle
 
         if (!($controllerAnnotation instanceof Controller)) {
             $controllerAnnotation = $defaultControllerAnnotation;
+        } else if ($defaultControllerAnnotation instanceof Controller) {
+            $controllerAnnotation->prefix = $defaultControllerAnnotation->prefix . $controllerAnnotation->prefix;
         }
 
         if ($controllerAnnotation instanceof Controller) {
diff --git a/test/AnnotationServiceProviderTest.php b/test/AnnotationServiceProviderTest.php
index 23ed208..e0d7c05 100755
--- a/test/AnnotationServiceProviderTest.php
+++ b/test/AnnotationServiceProviderTest.php
@@ -33,6 +33,18 @@ public function testRegisterControllersWithGroups()
         $this->assertEndPointStatus(self::GET_METHOD, '/group2/test2', self::STATUS_OK, $options);
     }
 
+    public function testGroupAndControllerPrefix()
+    {
+        $options = array(
+            "annot.controllers" => array(
+                'group' => array("DDesrosiers\\Test\\SilexAnnotations\\Controller\\TestController")
+            )
+        );
+
+        // both the annot.controller prefix and the Controller annotation prefix should be respected
+        $this->assertEndPointStatus(self::GET_METHOD, '/group/test/test1', self::STATUS_OK, $options);
+    }
+
     public function testRegisterControllersByDirectoryProvider()
     {
         $subDirFqcn = self::CONTROLLER_NAMESPACE."SubDir\\SubDirTestController";