diff --git a/apps/i18n.cpp b/apps/i18n.cpp
index 0d23ebfdf..b602359fa 100644
--- a/apps/i18n.cpp
+++ b/apps/i18n.cpp
@@ -17,7 +17,7 @@ constexpr static char deviationFrenchDefinition[] = {Ion::Charset::SmallSigma, '
 constexpr static char deviationEnglishDefinition[] = {Ion::Charset::SmallSigma, ' ', ':', ' ', 'S', 't', 'a', 'n', 'd', 'a', 'r', 'd', ' ','d','e', 'v', 'i', 'a', 't','i','o','n', 0};
 constexpr static char deviationSpanishDefinition[] = {Ion::Charset::SmallSigma, ' ', ':', ' ', 'D', 'e','s','v','i','a','c','i','o','n',' ','t','i','p','i','c','a',0};
 
-const char * messages[201][3] {
+const char * messages[203][3] {
   {"Attention", "Warning", "Cuidado"},
   {"Valider", "Confirm", "Confirmar"},
   {"Suivant", "Next", "Siguiente"},
@@ -154,6 +154,8 @@ const char * messages[201][3] {
   /* Sequence: second tab */
   {"Aucune suite", "No sequence", "Ninguna sucesion"},
   {"Aucune suite activee", "No sequence is turned on", "Ninguna sucesion activada"},
+  {"N debut", "N start", "N inicio"},
+  {"N fin", "N end", "N fin"},
   {"Somme des termes", "Sum of terms", "Suma de terminos"},
   {"SELECTIONNER LE PREMIER TERME", "SELECT FIRST TERM", "SELECCIONAR EL PRIMER TERMINO"},
   {"SELECTIONNER LE DERNIER TERME", "SELECT LAST TERM", "SELECCIONAR EL ULTIMO TERMINO"},
diff --git a/apps/i18n.h b/apps/i18n.h
index b007e5d0e..6e4cf6a55 100644
--- a/apps/i18n.h
+++ b/apps/i18n.h
@@ -112,7 +112,7 @@ namespace I18n {
     IntervalSet,
     XStart,
     XEnd,
-    XStep,
+    Step,
     XColumn,
     FunctionColumn,
     DerivativeColumn,
@@ -136,6 +136,8 @@ namespace I18n {
     DeleteSequence,
     NoSequence,
     NoActivatedSequence,
+    NStart,
+    NEnd,
     TermSum,
     SelectFirstTerm,
     SelectLastTerm,
diff --git a/apps/sequence/values/interval_parameter_controller.cpp b/apps/sequence/values/interval_parameter_controller.cpp
index c89618475..791b15023 100644
--- a/apps/sequence/values/interval_parameter_controller.cpp
+++ b/apps/sequence/values/interval_parameter_controller.cpp
@@ -14,7 +14,7 @@ void IntervalParameterController::willDisplayCellForIndex(HighlightCell * cell,
     return;
   }
   MessageTableCellWithEditableText * myCell = (MessageTableCellWithEditableText *)cell;
-  I18n::Message labels[k_totalNumberOfCell] = {I18n::Message::XStart, I18n::Message::XEnd, I18n::Message::XStep};
+  I18n::Message labels[k_totalNumberOfCell] = {I18n::Message::NStart, I18n::Message::NEnd, I18n::Message::Step};
   myCell->setMessage(labels[index]);
   FloatParameterController::willDisplayCellForIndex(cell, index);
 }
diff --git a/apps/shared/interval_parameter_controller.cpp b/apps/shared/interval_parameter_controller.cpp
index b2d0c3e2b..96bddcebc 100644
--- a/apps/shared/interval_parameter_controller.cpp
+++ b/apps/shared/interval_parameter_controller.cpp
@@ -30,7 +30,7 @@ void IntervalParameterController::willDisplayCellForIndex(HighlightCell * cell,
     return;
   }
   MessageTableCellWithEditableText * myCell = (MessageTableCellWithEditableText *)cell;
-  I18n::Message labels[k_totalNumberOfCell] = {I18n::Message::XStart, I18n::Message::XEnd, I18n::Message::XStep};
+  I18n::Message labels[k_totalNumberOfCell] = {I18n::Message::XStart, I18n::Message::XEnd, I18n::Message::Step};
   myCell->setMessage(labels[index]);
   FloatParameterController::willDisplayCellForIndex(cell, index);
 }