diff --git a/src/Builtin/BaseProcesses.cs b/src/Builtin/BaseProcesses.cs
index 36b1b5b..d172d1b 100644
--- a/src/Builtin/BaseProcesses.cs
+++ b/src/Builtin/BaseProcesses.cs
@@ -1,5 +1,6 @@
 #pragma warning disable CS0162 // Обнаружен недостижимый код
 using DCFApixels.DragonECS.RunnersCore;
+using System;
 
 namespace DCFApixels.DragonECS
 {