diff --git a/src/extract/webgl/WebGLExtract.js b/src/extract/webgl/WebGLExtract.js
index 1c3dd30..7bb3ee6 100644
--- a/src/extract/webgl/WebGLExtract.js
+++ b/src/extract/webgl/WebGLExtract.js
@@ -73,6 +73,7 @@
         let frame;
         let flipY = false;
         let renderTexture;
+        let generated = false;
 
         if (target)
         {
@@ -83,6 +84,7 @@
             else
             {
                 renderTexture = this.renderer.generateTexture(target);
+                generated = true;
             }
         }
 
@@ -145,7 +147,12 @@
             }
         }
 
-         // send the canvas back..
+        if (generated)
+        {
+            renderTexture.destroy(true);
+        }
+        // send the canvas back..
+
         return canvasBuffer.canvas;
     }
 
@@ -164,6 +171,7 @@
         let resolution;
         let frame;
         let renderTexture;
+        let generated = false;
 
         if (target)
         {
@@ -174,6 +182,7 @@
             else
             {
                 renderTexture = this.renderer.generateTexture(target);
+                generated = true;
             }
         }
 
@@ -216,6 +225,11 @@
             );
         }
 
+        if (generated)
+        {
+            renderTexture.destroy(true);
+        }
+
         return webglPixels;
     }