diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs
index bf2d054..a328964 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs
@@ -166,6 +166,10 @@ namespace Cysharp.Threading.Tasks
                 {
                     continuation(continuationState);
                 }
+                else 
+                {
+                    UniTaskScheduler.PublishUnobservedTaskException(error);
+                }
                 return true;
             }