diff --git a/static/js/visualization.js b/static/js/visualization.js
index a2a0814..c3cf38d 100644
--- a/static/js/visualization.js
+++ b/static/js/visualization.js
@@ -37,12 +37,17 @@ class Visualization {
       closeButton: true,
       maxHeight: 250
     })
+
     this.oms.addListener('click', function (marker) {
       popup.setContent(template(marker.incident))
       popup.setLatLng(marker.getLatLng())
       map.openPopup(popup)
     })
 
+    this.oms.addListener('spiderfy', function () {
+      map.closePopup()
+    })
+
     // set up markers
     this._markers = new Map()
     this.setupMarkers()