diff --git a/examples/editVoxels.js b/examples/editVoxels.js
index 8e85341e83..b9f5d925d9 100644
--- a/examples/editVoxels.js
+++ b/examples/editVoxels.js
@@ -331,7 +331,7 @@ function ScaleSelector() {
                                             });
     this.setScale = function(scale) {
         this.scale = scale;
-        this.power = Math.ceil(Math.log(scale) * Math.LOG2E);
+        this.power = Math.floor(Math.log(scale) / Math.log(2));
         rescaleImport();
         this.update();
     }