diff --git a/Formula/readline.rb b/Formula/readline.rb
index 03d861fd017..613e1cf323a 100644
--- a/Formula/readline.rb
+++ b/Formula/readline.rb
@@ -13,7 +13,9 @@ to keg-only.
   end
 
   def patches
-    (1..4).collect {|n| "ftp://ftp.gnu.org/gnu/readline/readline-6.0-patches/readline60-%03d"%n}
+    if MACOS_VERSION == 10.5
+      (1..4).collect {|n| "ftp://ftp.gnu.org/gnu/readline/readline-6.0-patches/readline60-%03d"%n}
+    end
   end
 
   def install