diff --git a/lib/compress.js b/lib/compress.js
index cc360950..8cfb56be 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -3948,7 +3948,7 @@ merge(Compressor.prototype, {
                 && !fn.contains_this()
                 && can_flatten_args(fn)
                 && (value = flatten_body(stat))) {
-                var expressions = flatten_args(fn, scope);
+                var expressions = flatten_args(fn);
                 expressions.push(value.clone(true));
                 return make_sequence(self, expressions).optimize(compressor);
             }
diff --git a/test/benchmark.js b/test/benchmark.js
index 8b20ec13..59383606 100644
--- a/test/benchmark.js
+++ b/test/benchmark.js
@@ -21,6 +21,7 @@ var urls = [
     "http://builds.emberjs.com/tags/v2.11.0/ember.prod.js",
     "https://cdn.jsdelivr.net/lodash/4.17.4/lodash.js",
     "https://cdnjs.cloudflare.com/ajax/libs/d3/4.5.0/d3.js",
+    "https://raw.githubusercontent.com/kangax/html-minifier/v3.5.7/dist/htmlminifier.js",
 ];
 var results = {};
 var remaining = 2 * urls.length;