gistfile1.txt

diff --git a/rack-debug.gemspec b/rack-debug.gemspec
index fb6004e..bd85e7f 100644
--- a/rack-debug.gemspec
+++ b/rack-debug.gemspec
@@ -42,14 +42,26 @@ http://github.com/github/rack-debug
 
     if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<rack>, [">= 1.0"])
-      s.add_runtime_dependency(%q<ruby-debug>, [">= 0.10"])
+      if RUBY_VERSION < '1.9'
+        s.add_runtime_dependency(%q<ruby-debug>, [">= 0.10"])
+      else
+        s.add_runtime_dependency(%q<ruby-debug19>, ["~> 0.11.6"])
+      end
     else
       s.add_dependency(%q<rack>, [">= 1.0"])
-      s.add_dependency(%q<ruby-debug>, [">= 0.10"])
+      if RUBY_VERSION < '1.9'
+        s.add_dependency(%q<ruby-debug>, [">= 0.10"])
+      else
+        s.add_dependency(%q<ruby-debug19>, ["~> 0.11.6"])
+      end
     end
   else
     s.add_dependency(%q<rack>, [">= 1.0"])
-    s.add_dependency(%q<ruby-debug>, [">= 0.10"])
+    if RUBY_VERSION < '1.9'
+      s.add_dependency(%q<ruby-debug>, [">= 0.10"])
+    else
+      s.add_dependency(%q<ruby-debug19>, ["~> 0.11.6"])
+    end
   end
 end