diff --git a/lib/core/option.py b/lib/core/option.py
index de968e993..815fa0d02 100755
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -334,7 +334,7 @@ def _feedTargetsDict(reqFile, addedTargetUrls):
                 hostPattern=host.replace(".","\.")
                 if (conf.forceSSL or re.search(r"host:[^\n\r]*%s:%s[\s\S]*referer:[^\n\r]*https://%s:%s.*" %
                                               (hostPattern, port, hostPattern, port), request, re.I)
-                or (port != 80
+                or (port != "80"
                     and re.search(r"host:[^\n\r]*%s:%s[\s\S]*referer:[^\n\r]*https://.*cdn.*" %
                                   (hostPattern, port), request, re.I))):
                     scheme = "https"