diff --git a/extensions/matrix/src/actions.test.ts b/extensions/matrix/src/actions.test.ts
index 519fa7ffc7e8..35908cd7bf4f 100644
--- a/extensions/matrix/src/actions.test.ts
+++ b/extensions/matrix/src/actions.test.ts
@@ -95,11 +95,17 @@ describe("matrixMessageActions", () => {
     expect(discovery.mediaSourceParams).toEqual({
       "set-profile": ["avatarUrl", "avatarPath"],
     });
-    expect(properties).toMatchObject({
-      displayName: expect.any(Object),
-      avatarUrl: expect.any(Object),
-      avatarPath: expect.any(Object),
-    });
+    expect(Object.keys(properties).sort()).toEqual([
+      "avatarPath",
+      "avatarUrl",
+      "avatar_path",
+      "avatar_url",
+      "displayName",
+      "display_name",
+    ]);
+    expect(properties.displayName).toHaveProperty("type", "string");
+    expect(properties.avatarUrl).toHaveProperty("type", "string");
+    expect(properties.avatarPath).toHaveProperty("type", "string");
   });
 
   it("hides self-profile updates for non-owner discovery", () => {