diff --git a/src/ol/source/bingmapssource.js b/src/ol/source/bingmapssource.js
index 226138140f..ceb5588d04 100644
--- a/src/ol/source/bingmapssource.js
+++ b/src/ol/source/bingmapssource.js
@@ -88,6 +88,7 @@ ol.source.BingMaps.prototype.handleImageryMetadataResponse =
                     .replace('{culture}', culture);
                 return (
                     /**
+                     * @this {ol.source.BingMaps}
                      * @param {ol.TileCoord} tileCoord Tile coordinate.
                      * @param {ol.Projection} projection Projection.
                      * @return {string|undefined} Tile URL.