diff --git a/.rvmrc b/.rvmrc
new file mode 100644
index 0000000..7f84720
--- /dev/null
+++ b/.rvmrc
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# This is an RVM Project .rvmrc file, used to automatically load the ruby
+# development environment upon cd'ing into the directory
+
+# First we specify our desired <ruby>[@<gemset>], the @gemset name is optional.
+environment_id="ruby-1.9.3-p125@mongoid_search"
+
+#
+# Uncomment following line if you want options to be set only for given project.
+#
+# PROJECT_JRUBY_OPTS=( --1.9 )
+
+#
+# First we attempt to load the desired environment directly from the environment
+# file. This is very fast and efficient compared to running through the entire
+# CLI and selector. If you want feedback on which environment was used then
+# insert the word 'use' after --create as this triggers verbose mode.
+#
+if [[ -d "${rvm_path:-$HOME/.rvm}/environments" \
+  && -s "${rvm_path:-$HOME/.rvm}/environments/$environment_id" ]]
+then
+  \. "${rvm_path:-$HOME/.rvm}/environments/$environment_id"
+
+  if [[ -s "${rvm_path:-$HOME/.rvm}/hooks/after_use" ]]
+  then
+    . "${rvm_path:-$HOME/.rvm}/hooks/after_use"
+  fi
+else
+  # If the environment file has not yet been created, use the RVM CLI to select.
+  if ! rvm --create  "$environment_id"
+  then
+    echo "Failed to create RVM environment '${environment_id}'."
+    exit 1
+  fi
+fi
+
+#
+# If you use an RVM gemset file to install a list of gems (*.gems), you can have
+# it be automatically loaded. Uncomment the following and adjust the filename if
+# necessary.
+#
+# filename=".gems"
+# if [[ -s "$filename" ]]
+# then
+#   rvm gemset import "$filename" | grep -v already | grep -v listed | grep -v complete | sed '/^$/d'
+# fi
+
+# If you use bundler, this might be useful to you:
+# if command -v bundle && [[ -s Gemfile ]]
+# then
+#   bundle install
+# fi
+
+
diff --git a/.rvmrc.06.02.2012-09:48:26 b/.rvmrc.06.02.2012-09:48:26
new file mode 100644
index 0000000..7f84720
--- /dev/null
+++ b/.rvmrc.06.02.2012-09:48:26
@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+# This is an RVM Project .rvmrc file, used to automatically load the ruby
+# development environment upon cd'ing into the directory
+
+# First we specify our desired <ruby>[@<gemset>], the @gemset name is optional.
+environment_id="ruby-1.9.3-p125@mongoid_search"
+
+#
+# Uncomment following line if you want options to be set only for given project.
+#
+# PROJECT_JRUBY_OPTS=( --1.9 )
+
+#
+# First we attempt to load the desired environment directly from the environment
+# file. This is very fast and efficient compared to running through the entire
+# CLI and selector. If you want feedback on which environment was used then
+# insert the word 'use' after --create as this triggers verbose mode.
+#
+if [[ -d "${rvm_path:-$HOME/.rvm}/environments" \
+  && -s "${rvm_path:-$HOME/.rvm}/environments/$environment_id" ]]
+then
+  \. "${rvm_path:-$HOME/.rvm}/environments/$environment_id"
+
+  if [[ -s "${rvm_path:-$HOME/.rvm}/hooks/after_use" ]]
+  then
+    . "${rvm_path:-$HOME/.rvm}/hooks/after_use"
+  fi
+else
+  # If the environment file has not yet been created, use the RVM CLI to select.
+  if ! rvm --create  "$environment_id"
+  then
+    echo "Failed to create RVM environment '${environment_id}'."
+    exit 1
+  fi
+fi
+
+#
+# If you use an RVM gemset file to install a list of gems (*.gems), you can have
+# it be automatically loaded. Uncomment the following and adjust the filename if
+# necessary.
+#
+# filename=".gems"
+# if [[ -s "$filename" ]]
+# then
+#   rvm gemset import "$filename" | grep -v already | grep -v listed | grep -v complete | sed '/^$/d'
+# fi
+
+# If you use bundler, this might be useful to you:
+# if command -v bundle && [[ -s Gemfile ]]
+# then
+#   bundle install
+# fi
+
+
diff --git a/lib/mongoid_search/util.rb b/lib/mongoid_search/util.rb
index aaa5257..b76c400 100644
--- a/lib/mongoid_search/util.rb
+++ b/lib/mongoid_search/util.rb
@@ -12,12 +12,14 @@ def self.keywords(klass, field, stem_keywords, ignore_list)
             else
               attribute.map(&method).map { |t| Util.normalize_keywords t, stem_keywords, ignore_list }
             end
-          else
-            if attribute.respond_to?(method)
-              Util.normalize_keywords(attribute.send(method), stem_keywords, ignore_list)
-            else # If the field is a serialized hash
-              Util.normalize_keywords(klass.send(key)[method.to_sym], stem_keywords, ignore_list)
+          elsif attribute.is_a?(Hash)
+            if method.is_a?(Array)
+              method.map {|m| Util.normalize_keywords attribute[m.to_sym], stem_keywords, ignore_list }
+            else
+              Util.normalize_keywords(attribute[method.to_sym], stem_keywords, ignore_list)
             end
+          else
+            Util.normalize_keywords(attribute.send(method), stem_keywords, ignore_list)
           end
         end
       end