diff --git a/src/DebugUtils/EcsDebug.cs b/src/DebugUtils/EcsDebug.cs
index 4b14def..6828d5f 100644
--- a/src/DebugUtils/EcsDebug.cs
+++ b/src/DebugUtils/EcsDebug.cs
@@ -289,8 +289,10 @@ namespace DCFApixels.DragonECS
             }
         }
         private MarkerData[] _stopwatchs;
+#if !UNITY_5_3_OR_NEWER
         [ThreadStatic]
         private static char[] _buffer;
+#endif
 
         public DefaultDebugService()
         {