diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Threading.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Threading.cs
index 65d548c..8077f60 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Threading.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Threading.cs
@@ -351,6 +351,8 @@ namespace Cysharp.Threading.Tasks
             {
                 get
                 {
+                    if (!dontPostWhenSameContext) return false;
+
                     var current = SynchronizationContext.Current;
                     if (current == synchronizationContext)
                     {