1 files changed, 7 insertions, 2 deletions
diff --git a/ext/date/lib/date.rb b/ext/date/lib/date.rb
index b72b4157f2..0cb763017f 100644
--- a/ext/date/lib/date.rb
+++ b/ext/date/lib/date.rb
@@ -4,15 +4,18 @@
 require 'date_core'
 
 class Date
+  VERSION = "3.5.1" # :nodoc:
 
+  # call-seq:
+  #   infinite? -> false
+  #
+  # Returns +false+
   def infinite?
     false
   end
 
   class Infinity < Numeric # :nodoc:
 
-    include Comparable
-
     def initialize(d=1) @d = d <=> 0 end
 
     def d() @d end
@@ -32,6 +35,8 @@ class Date
     def <=>(other)
       case other
       when Infinity; return d <=> other.d
+      when Float::INFINITY; return d <=> 1
+      when -Float::INFINITY; return d <=> -1
       when Numeric; return d
       else
         begin