diff --git a/Library/Homebrew/os.rb b/Library/Homebrew/os.rb
index da59954324..97f849c131 100644
--- a/Library/Homebrew/os.rb
+++ b/Library/Homebrew/os.rb
@@ -55,6 +55,7 @@ module OS
   LINUX_PREFERRED_GCC_COMPILER_FORMULA = "gcc@11" # https://packages.ubuntu.com/jammy/gcc
   LINUX_PREFERRED_GCC_RUNTIME_FORMULA = "gcc"
 
+  require "os/generic"
   if OS.mac?
     require "os/mac"
     # Don't tell people to report issues on unsupported configurations.
diff --git a/Library/Homebrew/os/generic.rb b/Library/Homebrew/os/generic.rb
new file mode 100644
index 0000000000..516c74764b
--- /dev/null
+++ b/Library/Homebrew/os/generic.rb
@@ -0,0 +1,8 @@
+# typed: strict
+# frozen_string_literal: true
+
+module OS
+  module Mac
+    ::MacOS = OS::Mac
+  end
+end
diff --git a/Library/Homebrew/os/linux.rb b/Library/Homebrew/os/linux.rb
index 2b5df8cfc3..a48836ded1 100644
--- a/Library/Homebrew/os/linux.rb
+++ b/Library/Homebrew/os/linux.rb
@@ -54,8 +54,6 @@ module OS
   module Mac
     module_function
 
-    ::MacOS = OS::Mac
-
     raise "Loaded OS::Linux on generic OS!" if ENV["HOMEBREW_TEST_GENERIC_OS"]
 
     def version
diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
index b52a965130..f8e0f3bba7 100644
--- a/Library/Homebrew/os/mac.rb
+++ b/Library/Homebrew/os/mac.rb
@@ -13,8 +13,6 @@ module OS
 
     module_function
 
-    ::MacOS = OS::Mac
-
     raise "Loaded OS::Mac on generic OS!" if ENV["HOMEBREW_TEST_GENERIC_OS"]
 
     VERSION = ENV.fetch("HOMEBREW_MACOS_VERSION").chomp.freeze