diff --git a/080g209iov.js b/080g209iov.js
index e849323..c6684d8 100644
--- a/080g209iov.js
+++ b/080g209iov.js
@@ -353,7 +353,7 @@ this.scene.meshes.map(
                     if (material.emissive) {
                         material.emissive.sub(this.toRed);
                     }
-                }
+                }.bind(this)
             );
         } else {
             if (mesh.instance.material.emissive) {