diff --git a/Formula/swiftgen.rb b/Formula/swiftgen.rb
index f8df07d2327..59f136d7fc5 100644
--- a/Formula/swiftgen.rb
+++ b/Formula/swiftgen.rb
@@ -14,6 +14,7 @@ class Swiftgen < Formula
 
   depends_on "ruby" => :build if MacOS.version <= :sierra
   depends_on xcode: ["12.0", :build]
+  depends_on :macos
 
   def install
     # Disable swiftlint build phase to avoid build errors if versions mismatch