diff --git a/src/ol/render/canvas/canvas.js b/src/ol/render/canvas/canvas.js
index 8144f14e9d..0debf6476b 100644
--- a/src/ol/render/canvas/canvas.js
+++ b/src/ol/render/canvas/canvas.js
@@ -49,7 +49,7 @@ ol.render.canvas.defaultMiterLimit = 10;
  * @const
  * @type {ol.Color}
  */
-ol.render.canvas.defaultStrokeStyle = ol.color.fromString('black');
+ol.render.canvas.defaultStrokeStyle = [0, 0, 0, 1];
 
 
 /**