diff --git a/src/domain/navigation/index.js b/src/domain/navigation/index.js
index 899fc53a..fab91c11 100644
--- a/src/domain/navigation/index.js
+++ b/src/domain/navigation/index.js
@@ -257,6 +257,25 @@ export function tests() {
             assert.equal(segments[2].type, "room");
             assert.equal(segments[2].value, "a");
         },
+        "parse open-room action changing focus to an existing room with details open": assert => {
+            const nav = new Navigation(allowsChild);
+            const path = nav.pathFrom([
+                new Segment("session", 1),
+                new Segment("rooms", ["a", "b", "c"]),
+                new Segment("room", "b"),
+                new Segment("details", true)
+            ]);
+            const segments = parseUrlPath("/session/1/open-room/a", path);
+            assert.equal(segments.length, 4);
+            assert.equal(segments[0].type, "session");
+            assert.equal(segments[0].value, "1");
+            assert.equal(segments[1].type, "rooms");
+            assert.deepEqual(segments[1].value, ["a", "b", "c"]);
+            assert.equal(segments[2].type, "room");
+            assert.equal(segments[2].value, "a");
+            assert.equal(segments[3].type, "details");
+            assert.equal(segments[3].value, true);
+        },
         "parse open-room action setting a room in an empty tile": assert => {
             const nav = new Navigation(allowsChild);
             const path = nav.pathFrom([