diff --git a/client/app/scripts/stores/__tests__/app-store-test.js b/client/app/scripts/stores/__tests__/app-store-test.js
index b6d38a231..aa71805f0 100644
--- a/client/app/scripts/stores/__tests__/app-store-test.js
+++ b/client/app/scripts/stores/__tests__/app-store-test.js
@@ -143,6 +143,23 @@ describe('AppStore', function() {
     expect(AppStore.getNodes()).toEqual(NODE_SET);
   });
 
+  it('closes details when changing topologies', function() {
+    registeredCallback(ReceiveTopologiesAction);
+    registeredCallback(ClickTopologyAction);
+    registeredCallback(ReceiveNodesDeltaAction);
+
+    expect(AppStore.getAppState())
+      .toEqual({"topologyId":"topo1","selectedNodeId": null});
+
+    registeredCallback(ClickNodeAction);
+    expect(AppStore.getAppState())
+      .toEqual({"topologyId":"topo1","selectedNodeId": 'n1'});
+
+    registeredCallback(ClickSubTopologyAction);
+    expect(AppStore.getAppState())
+      .toEqual({"topologyId":"topo1-grouped","selectedNodeId": null});
+  });
+
   // connection errors
 
   it('resets topology on websocket reconnect', function() {
diff --git a/client/app/scripts/stores/app-store.js b/client/app/scripts/stores/app-store.js
index 848dbf838..3f5c00253 100644
--- a/client/app/scripts/stores/app-store.js
+++ b/client/app/scripts/stores/app-store.js
@@ -145,6 +145,7 @@ AppStore.registeredCallback = function(payload) {
       break;
 
     case ActionTypes.CLICK_TOPOLOGY:
+      selectedNodeId = null;
       if (payload.topologyId !== currentTopologyId) {
         currentTopologyId = payload.topologyId;
         nodes = {};