diff --git a/packages/core/src/renderTexture/RenderTexturePool.js b/packages/core/src/renderTexture/RenderTexturePool.js
index 22e143b..bf3f464 100644
--- a/packages/core/src/renderTexture/RenderTexturePool.js
+++ b/packages/core/src/renderTexture/RenderTexturePool.js
@@ -93,7 +93,7 @@
     {
         const rt = this.renderer.renderTexture.current;
 
-        const filterTexture = this.getOptimalFilterTexture(rt.width, rt.height, resolution || rt.baseTexture.resolution);
+        const filterTexture = this.getOptimalTexture(rt.width, rt.height, resolution || rt.baseTexture.resolution);
 
         filterTexture.filterFrame = rt.filterFrame;
 
@@ -101,8 +101,7 @@
     }
 
     /**
-     * Frees a render texture back into the pool.
-     *
+     * Place a render texture back into the pool.
      * @param {PIXI.RenderTexture} renderTexture - The renderTexture to free
      */
     returnTexture(renderTexture)
@@ -114,6 +113,15 @@
     }
 
     /**
+     * Alias for returnTexture, to be compliant with FilterSystem interface
+     * @param {PIXI.RenderTexture} renderTexture - The renderTexture to free
+     */
+    returnFilterTexture(renderTexture)
+    {
+        this.returnTexture(renderTexture);
+    }
+
+    /**
      * Clears the pool
      *
      * @member {boolean} [destroyTextures=true] destroy all stored textures