diff --git a/ruma-events/tests/state_event.rs b/ruma-events/tests/state_event.rs
index 7e44edfa..bec640fe 100644
--- a/ruma-events/tests/state_event.rs
+++ b/ruma-events/tests/state_event.rs
@@ -182,6 +182,11 @@ fn deserialize_avatar_without_prev_content() {
         "type": "m.room.avatar"
     });
 
+    let expected_url = "http://www.matrix.org";
+
+    #[cfg(feature = "unstable-pre-spec")]
+    let expected_url = Some(expected_url.to_owned());
+
     assert_matches!(
         from_json_value::<Raw<StateEvent<AnyStateEventContent>>>(json_data)
             .unwrap()
@@ -233,7 +238,7 @@ fn deserialize_avatar_without_prev_content() {
                             && *thumbnail_url == "mxc://matrix.org"
                     )
             )
-            && url == "http://www.matrix.org"
+            && url == expected_url
             && unsigned.is_empty()
     );
 }
diff --git a/ruma-events/tests/stripped.rs b/ruma-events/tests/stripped.rs
index 2f1a9b26..f572a5e3 100644
--- a/ruma-events/tests/stripped.rs
+++ b/ruma-events/tests/stripped.rs
@@ -117,13 +117,17 @@ fn deserialize_stripped_state_events() {
     match event {
         AnyStrippedStateEvent::RoomAvatar(event) => {
             let image_info = event.content.info.unwrap();
+            let expected_url = "https://example.com/image.jpg";
+
+            #[cfg(feature = "unstable-pre-spec")]
+            let expected_url = Some(expected_url.to_owned());
 
             assert_eq!(image_info.height.unwrap(), uint!(128));
             assert_eq!(image_info.width.unwrap(), uint!(128));
             assert_eq!(image_info.mimetype.unwrap(), "image/jpeg");
             assert_eq!(image_info.size.unwrap(), uint!(1024));
             assert_eq!(image_info.thumbnail_info.unwrap().size.unwrap(), uint!(32));
-            assert_eq!(event.content.url, "https://example.com/image.jpg");
+            assert_eq!(event.content.url, expected_url);
             assert_eq!(event.state_key, "");
             assert_eq!(event.sender.to_string(), "@example:localhost");
         }