diff --git a/Library/Homebrew/test/version_spec.rb b/Library/Homebrew/test/version_spec.rb
index a713d6369b..c80998e528 100644
--- a/Library/Homebrew/test/version_spec.rb
+++ b/Library/Homebrew/test/version_spec.rb
@@ -144,6 +144,10 @@ describe Version do
     expect(described_class.create("2.1.0-p194")).to be > nil
   end
 
+  it "can be compared against Version::NULL" do
+    expect(described_class.create("2.1.0-p194")).to be > Version::NULL
+  end
+
   it "can be compared against strings" do
     expect(described_class.create("2.1.0-p194")).to be == "2.1.0-p194"
     expect(described_class.create("1")).to be == 1
diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index c2635f18cc..b6c0a79abc 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -387,6 +387,7 @@ class Version
     other = Version.new(other.to_s) if other.is_a? Integer
     return 1 if other.nil?
 
+    return 1 if other.respond_to?(:null?) && other.null?
     return unless other.is_a?(Version)
     return 0 if version == other.version
     return 1 if head? && !other.head?