diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index 1f39b823c8..227ed7d488 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,4 +1,6 @@
-*SVN*                                                                                                                 
+*SVN*
+
+* Avoid memleak in dev mode when using fcgi
 
 * Simplified .clear on active record associations by using the existing delete_records method. #1906 [Caleb <me@cpb.ca>]
 
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index 8af2c33ce5..be8b672fa7 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -940,9 +940,14 @@ module ActiveRecord #:nodoc:
         #   end
         def define_attr_method(name, value=nil, &block)
           sing = class << self; self; end
-          block = proc { value.to_s } if value
-          sing.send( :alias_method, "original_#{name}", name )
-          sing.send( :define_method, name, &block )
+          sing.send :alias_method, "original_#{name}", name
+          if value
+            # use eval instead of a block to work around a memory leak in dev
+            # mode in fcgi
+            sing.class_eval "def #{name}; #{value.to_s.inspect}; end"
+          else
+            sing.send :define_method, name, &block
+          end
         end
 
       protected