diff --git a/Library/Homebrew/shims/super/cc b/Library/Homebrew/shims/super/cc
index 9d2ee0d340..b0ea705e8c 100755
--- a/Library/Homebrew/shims/super/cc
+++ b/Library/Homebrew/shims/super/cc
@@ -31,7 +31,7 @@ class Cmd
     @deps = Set.new(ENV.fetch("HOMEBREW_DEPENDENCIES") { "" }.split(","))
     @formula_prefix = ENV["HOMEBREW_FORMULA_PREFIX"]
     # matches opt or cellar prefix and formula name
-    @keg_regex = %r[(#{Regexp.escape(opt)}|#{Regexp.escape(cellar)})/([\w\-_\+]+)]
+    @keg_regex = %r[(#{Regexp.escape(opt)}|#{Regexp.escape(cellar)})/([\w+-.@]+)]
   end
 
   def mode