diff --git a/src/ol/source/tilesource.js b/src/ol/source/tilesource.js
index e014c0fdb7..a715030b51 100644
--- a/src/ol/source/tilesource.js
+++ b/src/ol/source/tilesource.js
@@ -165,7 +165,7 @@ ol.source.Tile.prototype.getTile = goog.abstractMethod;
 
 /**
  * @return {ol.tilegrid.TileGrid} Tile grid.
- * @api
+ * @api stable
  */
 ol.source.Tile.prototype.getTileGrid = function() {
   return this.tileGrid;