diff --git a/src/ol/interaction/draw.js b/src/ol/interaction/draw.js
index 52bdb4bc1a..6368e3135f 100644
--- a/src/ol/interaction/draw.js
+++ b/src/ol/interaction/draw.js
@@ -24,6 +24,7 @@ goog.require('ol.interaction.InteractionProperty');
 goog.require('ol.interaction.Pointer');
 goog.require('ol.layer.Vector');
 goog.require('ol.source.Vector');
+goog.require('ol.style.Style');
 
 
 /**
diff --git a/src/ol/interaction/modify.js b/src/ol/interaction/modify.js
index fcc9d4f07c..afa57f6966 100644
--- a/src/ol/interaction/modify.js
+++ b/src/ol/interaction/modify.js
@@ -20,6 +20,7 @@ goog.require('ol.interaction.Pointer');
 goog.require('ol.layer.Vector');
 goog.require('ol.source.Vector');
 goog.require('ol.structs.RBush');
+goog.require('ol.style.Style');
 
 
 /**
diff --git a/src/ol/interaction/select.js b/src/ol/interaction/select.js
index 796800c8fd..2a0d007051 100644
--- a/src/ol/interaction/select.js
+++ b/src/ol/interaction/select.js
@@ -16,6 +16,7 @@ goog.require('ol.interaction.Interaction');
 goog.require('ol.layer.Vector');
 goog.require('ol.obj');
 goog.require('ol.source.Vector');
+goog.require('ol.style.Style');
 
 
 /**
diff --git a/src/ol/layer/vector.js b/src/ol/layer/vector.js
index 3e532b816c..d6e9253cf3 100644
--- a/src/ol/layer/vector.js
+++ b/src/ol/layer/vector.js
@@ -3,6 +3,7 @@ goog.provide('ol.layer.Vector');
 goog.require('ol');
 goog.require('ol.layer.Layer');
 goog.require('ol.obj');
+goog.require('ol.style.Style');
 
 
 /**