diff --git a/app/locale/es-419.coffee b/app/locale/es-419.coffee
index 5fe00a545..d09ec0e65 100644
--- a/app/locale/es-419.coffee
+++ b/app/locale/es-419.coffee
@@ -787,7 +787,7 @@ module.exports = nativeDescription: "Español (América Latina)", englishDescrip
     my_clans: "Mis Clanes"
     clan_name: "Nombre del clan"
     name: "Nombre"
-#    chieftain: "Chieftain"
+    chieftain: "Líder del Clan"
     type: "Tipo"
     edit_clan_name: "Editar el nombre del Clan"
     edit_clan_description: "Editar descripción del clan"
@@ -1188,27 +1188,27 @@ module.exports = nativeDescription: "Español (América Latina)", englishDescrip
     poll: "Encuesta"
     user_polls_record: "Historia de Visitas de Encuestas"
 
-#  concepts:
-#    advanced_strings: "Advanced Strings"
-#    algorithms: "Algorithms"
-#    arguments: "Arguments"
-#    arithmetic: "Arithmetic"
-#    arrays: "Arrays"
-#    basic_syntax: "Basic Syntax"
-#    boolean_logic: "Boolean Logic"
-#    break_statements: "Break Statements"
-#    classes: "Classes"
-#    for_loops: "For Loops"
-#    functions: "Functions"
-#    if_statements: "If Statements"
-#    input_handling: "Input Handling"
-#    math_operations: "Math Operations"
-#    object_literals: "Object Literals"
-#    strings: "Strings"
-#    variables: "Variables"
-#    vectors: "Vectors"
-#    while_loops: "Loops"
-#    recursion: "Recursion"
+  concepts:
+    advanced_strings: "Cadenas - Avanzado"
+    algorithms: "Algoritmos"
+    arguments: "Argumentos"
+    arithmetic: "Aritmética"
+    arrays: "Arreglos"
+    basic_syntax: "Sintaxis Básica"
+    boolean_logic: "Lógica Booleana"
+    break_statements: "Sentencias Break"
+    classes: "Clases"
+    for_loops: "Bucle For"
+    functions: "Funciones"
+    if_statements: "Sentencias If"
+    input_handling: "Manejo de Entradas"
+    math_operations: "Operaciones Matemáticas"
+    object_literals: "Objetos Literales"
+    strings: "Cadenas"
+    variables: "Variables"
+    vectors: "Vectores"
+    while_loops: "Bucles"
+    recursion: "Recursividad"
 
   delta:
     added: "Agregado"