diff --git a/src/Bundle/ChillMainBundle/DependencyInjection/Widget/AbstractWidgetsCompilerPass.php b/src/Bundle/ChillMainBundle/DependencyInjection/Widget/AbstractWidgetsCompilerPass.php
index 4253b0ed9..c3b179ec4 100644
--- a/src/Bundle/ChillMainBundle/DependencyInjection/Widget/AbstractWidgetsCompilerPass.php
+++ b/src/Bundle/ChillMainBundle/DependencyInjection/Widget/AbstractWidgetsCompilerPass.php
@@ -230,7 +230,7 @@ abstract class AbstractWidgetsCompilerPass implements CompilerPassInterface
 
                 // check the alias does not exists yet
                 if (\array_key_exists($attr[self::WIDGET_SERVICE_TAG_ALIAS], $this->widgetServices)) {
-                    throw new InvalidArgumentException('a service has already be defined with the '.self::WIDGET_SERVICE_TAG_ALIAS.' '.$attr[self::WIDGET_SERVICE_TAG_ALIAS]);
+                    throw new InvalidConfigurationException('a service has already be defined with the '.self::WIDGET_SERVICE_TAG_ALIAS.' '.$attr[self::WIDGET_SERVICE_TAG_ALIAS]);
                 }
 
                 // register the service as available
@@ -259,7 +259,7 @@ abstract class AbstractWidgetsCompilerPass implements CompilerPassInterface
 
             // check the alias does not exists yet
             if (\array_key_exists($alias, $this->widgetServices)) {
-                throw new InvalidArgumentException('a service has already be defined with the '.self::WIDGET_SERVICE_TAG_ALIAS.' '.$alias);
+                throw new InvalidConfigurationException('a service has already be defined with the '.self::WIDGET_SERVICE_TAG_ALIAS.' '.$alias);
             }
 
             // register the factory as available