diff --git a/lib/PuppeteerSharp/ChromeTargetManager.cs b/lib/PuppeteerSharp/ChromeTargetManager.cs
index bf7407304..09598955b 100644
--- a/lib/PuppeteerSharp/ChromeTargetManager.cs
+++ b/lib/PuppeteerSharp/ChromeTargetManager.cs
@@ -93,7 +93,9 @@ await _connection.SendAsync("Target.setAutoAttach", new TargetSetAutoAttachReque
                 AutoAttach = true,
             }).ConfigureAwait(false);
 
+            await _targetDiscoveryCompletionSource.Task.ConfigureAwait(false);
             FinishInitializationIfReady();
+
             await _initializeCompletionSource.Task.ConfigureAwait(false);
         }