diff --git a/src/map/Backgroundlayermgr.js b/src/map/Backgroundlayermgr.js
index 2aa46b405342..529f43886b32 100644
--- a/src/map/Backgroundlayermgr.js
+++ b/src/map/Backgroundlayermgr.js
@@ -3,7 +3,6 @@ goog.provide('ngeo.map.BackgroundLayerMgr');
 goog.require('goog.asserts');
 goog.require('ngeo');
 goog.require('ngeo.CustomEvent');
-goog.require('ngeo.map.LayerHelper');
 goog.require('ol');
 goog.require('ol.Observable');
 goog.require('ol.layer.Group');
diff --git a/test/spec/services/backgroundlayermgr.spec.js b/test/spec/services/backgroundlayermgr.spec.js
index 6f61477cf0e7..8efb0fac5b94 100644
--- a/test/spec/services/backgroundlayermgr.spec.js
+++ b/test/spec/services/backgroundlayermgr.spec.js
@@ -2,8 +2,6 @@ goog.require('ol.Collection');
 goog.require('ol.Map');
 goog.require('ol.layer.Group');
 goog.require('ol.layer.Tile');
-goog.require('ngeo.map.BackgroundLayerMgr');
-goog.require('ngeo.map.LayerHelper');
 
 describe('ngeo.map.BackgroundLayerMgr', () => {
   let ngeoBackgroundLayerMgr;