diff --git a/src/components/interactive-map.js b/src/components/interactive-map.js
index b0c9829c..1b73e25d 100644
--- a/src/components/interactive-map.js
+++ b/src/components/interactive-map.js
@@ -141,7 +141,7 @@ function normalizeEvent(event) {
   const pos = [x, y];
 
   const viewport = new WebMercatorViewport(
-    Object.assign({}, this.props, {
+    Object.assign({}, this.props, this.props.viewState, {
       width: this.width,
       height: this.height
     })