diff --git a/packages/core/src/renderTexture/RenderTexturePool.js b/packages/core/src/renderTexture/RenderTexturePool.js
index bf3f464..abe78f6 100644
--- a/packages/core/src/renderTexture/RenderTexturePool.js
+++ b/packages/core/src/renderTexture/RenderTexturePool.js
@@ -3,6 +3,8 @@
 import { nextPow2 } from '@pixi/utils';
 
 /**
+ * Experimental!
+ *
  * Texture pool, used by FilterSystem and plugins
  * Stores collection of temporary pow2 or screen-sized renderTextures
  */