diff --git a/Gemfile b/Gemfile
index c2b6715..ec615e9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -48,7 +48,7 @@ gem 'thinking-sphinx', '3.1.4'
 
 group :development, :test do
   # Call 'debugger' anywhere in the code to stop execution and get a debugger console
-  gem 'debugger'
+  # gem 'debugger'
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index ed64ba3..0ffeed9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,14 +61,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
-    columnize (0.9.0)
     debug_inspector (0.0.2)
-    debugger (1.6.8)
-      columnize (>= 0.3.1)
-      debugger-linecache (~> 1.2.0)
-      debugger-ruby_core_source (~> 1.3.5)
-    debugger-linecache (1.2.0)
-    debugger-ruby_core_source (1.3.8)
     descriptive_statistics (2.4.0)
     devise (3.4.1)
       bcrypt (~> 3.0)
@@ -236,7 +229,6 @@ DEPENDENCIES
   axlsx (= 2.0.1)
   capistrano (= 2.14.2)
   coffee-rails (= 4.1.0)
-  debugger
   descriptive_statistics (= 2.4.0)
   devise (= 3.4.1)
   faker (= 1.5.0)
diff --git a/app/models/recommender_system.rb b/app/models/recommender_system.rb
index 07a653e..ff18563 100644
--- a/app/models/recommender_system.rb
+++ b/app/models/recommender_system.rb
@@ -366,7 +366,7 @@ def self.processFreeText(text)
   end
 
   def self.normalizeText(text)
-    I18n.transliterate(text.gsub(/([\n])/," ").downcase.strip)
+    I18n.transliterate(text.gsub(/([\n])/," ").strip, :locale => "en").downcase
   end
 
   # Term Frequency (TF)
diff --git a/config/locales/en.yml b/config/locales/en.yml
index cb8af94..1222768 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -1,6 +1,16 @@
 # encoding: utf-8
 
 en:
+  i18n:
+    transliterate:
+      rule:
+        ª: "ª"
+        º: "º"
+        ´: "´"
+        ?: "?"
+        ¿: "¿"
+        ¡: "¡"
+        ́ : ""
   activerecord:
     errors:
       messages: