diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 6d3984275c..12a8a80bc1 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -404,8 +404,8 @@ class FormulaInstaller
     fatals = []
 
     req_map.each_pair do |dependent, reqs|
-      next if dependent.installed?
       reqs.each do |req|
+        next if dependent.installed? && req.name == "maximummacos"
         @requirement_messages << "#{dependent}: #{req.message}"
         fatals << req if req.fatal?
       end