diff --git a/kiri-engine/Context.php b/kiri-engine/Context.php
index 8da6349b..c9b5b647 100644
--- a/kiri-engine/Context.php
+++ b/kiri-engine/Context.php
@@ -127,7 +127,9 @@ class Context extends BaseContext
 	 */
 	public static function clearAll(): void
 	{
-		static::$_contents = [];
+		if (Coroutine::getCid() === -1) {
+			static::$_contents = [];
+		}
 	}
 	
 	/**