diff --git a/src/ol/Feature.js b/src/ol/Feature.js
index 8cab579b20..db419cf62a 100644
--- a/src/ol/Feature.js
+++ b/src/ol/Feature.js
@@ -101,8 +101,8 @@ class Feature extends BaseObject {
     if (opt_geometryOrProperties !== undefined) {
       if (opt_geometryOrProperties instanceof Geometry ||
           !opt_geometryOrProperties) {
-        /** @type {?Geometry} */
-        const geometry = opt_geometryOrProperties;
+
+        const geometry = /** @type {?Geometry} */ (opt_geometryOrProperties);
         this.setGeometry(geometry);
       } else {
         /** @type {Object<string, *>} */