diff --git a/Library/Homebrew/test/test_x11_dependency.rb b/Library/Homebrew/test/test_x11_dependency.rb
index 31fa92d07b..f174c8e23b 100644
--- a/Library/Homebrew/test/test_x11_dependency.rb
+++ b/Library/Homebrew/test/test_x11_dependency.rb
@@ -34,6 +34,7 @@ class X11DependencyTests < Homebrew::TestCase
   end
 
   def test_satisfied
+    MacOS::XQuartz.stubs(:version).returns("2.7.5")
     MacOS::XQuartz.stubs(:installed?).returns(true)
     assert_predicate X11Dependency.new, :satisfied?