diff --git a/db/migrate/20120923063400_add_lat_lng_to_person.rb b/db/migrate/20120923063400_add_lat_lng_to_person.rb
index 6eb32ba..aa0d83e 100644
--- a/db/migrate/20120923063400_add_lat_lng_to_person.rb
+++ b/db/migrate/20120923063400_add_lat_lng_to_person.rb
@@ -1,6 +1,6 @@
 class AddLatLngToPerson < ActiveRecord::Migration
   def change
-    add_column :people, :lat, :float
-    add_column :people, :lng, :float
+    add_column :people, :lat, :real
+    add_column :people, :lng, :real
   end
 end
diff --git a/db/schema.rb b/db/schema.rb
index a8706ec..692eb88 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -32,32 +32,8 @@ ActiveRecord::Schema.define(:version => 20120923063400) do
     t.string   "pending_approval_token"
   end
 
-  create_table "people", :force => true do |t|
-    t.string   "account"
-    t.string   "full_name"
-    t.string   "chinese_name"
-    t.string   "preferred_name"
-    t.string   "email"
-    t.string   "pinyin_name"
-    t.datetime "created_at",         :null => false
-    t.datetime "updated_at",         :null => false
-    t.string   "photo_file_name"
-    t.string   "photo_content_type"
-    t.integer  "photo_file_size"
-    t.string   "persona_id"
-    t.integer  "track"
-    t.string   "secret"
-    t.string   "phone"
-    t.string   "twitter"
-    t.string   "facebook"
-    t.string   "weibo"
-    t.string   "appnet"
-    t.string   "github"
-    t.string   "url"
-    t.string   "auth_token"
-    t.float    "lat"
-    t.float    "lng"
-  end
+# Could not dump table "people" because of following StandardError
+#   Unknown type 'real' for column 'lat'
 
   create_table "teams", :force => true do |t|
     t.string   "name"