diff --git a/Library/Homebrew/requirements.rb b/Library/Homebrew/requirements.rb
index d0ebbe9cf7b71e0b7ae4ef8ed8ae74a6cc8f06e9..05576a873daf0ea4b2ccbecc683e742774b9e7cd 100644
--- a/Library/Homebrew/requirements.rb
+++ b/Library/Homebrew/requirements.rb
@@ -2,11 +2,12 @@ require 'requirement'
 require 'requirements/fortran_dependency'
 require 'requirements/language_module_dependency'
 require 'requirements/minimum_macos_requirement'
+require 'requirements/maximum_macos_requirement'
 require 'requirements/mpi_dependency'
 require 'requirements/osxfuse_dependency'
 require 'requirements/python_dependency'
+require 'requirements/unsigned_kext_requirement'
 require 'requirements/x11_dependency'
-require 'requirements/maximum_macos_requirement'
 
 class XcodeDependency < Requirement
   fatal true
diff --git a/Library/Homebrew/requirements/unsigned_kext_requirement.rb b/Library/Homebrew/requirements/unsigned_kext_requirement.rb
new file mode 100644
index 0000000000000000000000000000000000000000..440684773e559a84adbfcea01bf89397ed6d35f3
--- /dev/null
+++ b/Library/Homebrew/requirements/unsigned_kext_requirement.rb
@@ -0,0 +1,16 @@
+require 'requirement'
+
+class UnsignedKextRequirement < Requirement
+  fatal true
+
+  satisfy { MacOS.version < :yosemite }
+
+  def message
+    <<-EOS.undent
+      OS X Mavericks or older is required for this package.
+      OS X Yosemite introduced a strict unsigned kext ban which breaks this package.
+      You should remove this package from your system and attempt to find upstream
+      binaries to use instead.
+    EOS
+  end
+end