diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index d8d1a8fbf8..111efb9d59 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -308,6 +308,7 @@ class FormulaInstaller
 
     req_map.each_pair do |dependent, reqs|
       reqs.each do |req|
+        next if dependent.installed? && req.name == "maximummacos"
         puts "#{dependent}: #{req.message}"
         fatals << req if req.fatal?
       end