diff --git a/components/servo/tests/common/mod.rs b/components/servo/tests/common/mod.rs
index b2df4f13c1f..fd6e99df4da 100644
--- a/components/servo/tests/common/mod.rs
+++ b/components/servo/tests/common/mod.rs
@@ -143,6 +143,7 @@ pub(crate) struct WebViewDelegateImpl {
     pub(crate) url_changed: Cell<bool>,
     pub(crate) cursor_changed: Cell<bool>,
     pub(crate) new_frame_ready: Cell<bool>,
+    pub(crate) load_status_changed: Cell<bool>,
 }
 
 impl WebViewDelegateImpl {
@@ -166,6 +167,12 @@ impl WebViewDelegate for WebViewDelegateImpl {
         self.new_frame_ready.set(true);
         webview.paint();
     }
+
+    fn notify_load_status_changed(&self, _webview: WebView, status: LoadStatus) {
+        if status == LoadStatus::Complete {
+            self.load_status_changed.set(true);
+        }
+    }
 }
 
 pub(crate) fn evaluate_javascript(
diff --git a/components/servo/tests/multiprocess.rs b/components/servo/tests/multiprocess.rs
index cbd1255d110..6dd8a84c6fe 100644
--- a/components/servo/tests/multiprocess.rs
+++ b/components/servo/tests/multiprocess.rs
@@ -32,7 +32,9 @@ fn test_multiprocess_preference_observer(servo_test: &ServoTest) -> Result<(), a
     prefs.dom_servo_helpers_enabled = true;
     prefs::set(prefs);
 
+    delegate.load_status_changed.set(false);
     webview.reload();
+    let _ = servo_test.spin(move || Ok(!delegate.load_status_changed.get()));
 
     let result = evaluate_javascript(servo_test, webview.clone(), "window.gc");
     ensure!(matches!(result, Ok(JSValue::Object(..))));