diff --git a/pywb/rewrite/regex_rewriters.py b/pywb/rewrite/regex_rewriters.py
index 9769e1bf..8e22c016 100644
--- a/pywb/rewrite/regex_rewriters.py
+++ b/pywb/rewrite/regex_rewriters.py
@@ -137,10 +137,10 @@ class JSLocationRewriterMixin(object):
             (r'(?<=document\.)cookie', RegexRewriter.add_prefix(prefix), 0),
 
             #todo: move to mixin?
-           (r'(?<=[\s=(){])(top)\s*(?:[!}()]|==|$)',
+           (r'(?<=[\s=(){])(top)\s*(?:[!})]|==|$)',
             RegexRewriter.add_prefix(prefix), 1),
 
-           (r'^(top)\s*(?:[!}()]|==|$)',
+           (r'^(top)\s*(?:[!})]|==|$)',
             RegexRewriter.add_prefix(prefix), 1),
 
            (r'(?<=window\.)(top)',