diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index 81ed161c37..b486af9518 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -338,7 +338,7 @@ class FormulaAuditor
         problem "Fossies urls should be https://, not http (url is #{p})."
       when %r[^http://mirrors\.kernel\.org/]
         problem "mirrors.kernel urls should be https://, not http (url is #{p})."
-      when %r[^http://[^/]*\.bintray\.com/]
+      when %r[^http://([^/]*\.|)bintray\.com/]
         problem "Bintray urls should be https://, not http (url is #{p})."
       when %r[^http://tools\.ietf\.org/]
         problem "ietf urls should be https://, not http (url is #{p})."