diff --git a/lib/Map.js b/lib/Map.js
index 182c910b..5969cf4e 100644
--- a/lib/Map.js
+++ b/lib/Map.js
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import OLMap from 'ol/Map';
+import OLMap from 'ol/Map.js';
 import {Component, createElement, createRef, forwardRef} from 'react';
 import {any, func, node, object, oneOfType, shape, string} from 'prop-types';
 import {render, updateInstanceFromProps} from '../renderer/render.js';