diff --git a/Core/src/org/sleuthkit/autopsy/discovery/DiscoveryTopComponent.java b/Core/src/org/sleuthkit/autopsy/discovery/DiscoveryTopComponent.java
index 0d87facce5..633bf5c612 100644
--- a/Core/src/org/sleuthkit/autopsy/discovery/DiscoveryTopComponent.java
+++ b/Core/src/org/sleuthkit/autopsy/discovery/DiscoveryTopComponent.java
@@ -143,6 +143,7 @@ public final class DiscoveryTopComponent extends TopComponent {
     @Override
     protected void componentClosed() {
         DiscoveryDialog.getDiscoveryDialogInstance().cancelSearch();
+        DiscoveryEventUtils.getDiscoveryEventBus().post(new DiscoveryEventUtils.ClearInstanceSelectionEvent());
         DiscoveryEventUtils.getDiscoveryEventBus().unregister(this);
         DiscoveryEventUtils.getDiscoveryEventBus().unregister(groupListPanel);
         DiscoveryEventUtils.getDiscoveryEventBus().unregister(resultsPanel);