diff --git a/test/fx.ts b/test/fx.ts
index 9c8c382a3..5c19658ff 100644
--- a/test/fx.ts
+++ b/test/fx.ts
@@ -250,7 +250,7 @@ class TreeNode {
       // Try three times to wait for the node to expand.
       for (let i = 0; i < RETRY_COUNT; i++) {
         try {
-          await tree.waitFor({ state: "visible" });
+          await tree.waitFor({ state: "visible", timeout: 30000 });
           // The tree has expanded, let's get out of here
           return true;
         } catch {