diff --git a/htdocs/langs/en_US/contracts.lang b/htdocs/langs/en_US/contracts.lang
index b53408bcb8f..cfcad72f658 100644
--- a/htdocs/langs/en_US/contracts.lang
+++ b/htdocs/langs/en_US/contracts.lang
@@ -32,6 +32,8 @@ ContractStartDate=Start date
 ContractEndDate=End date
 DateStartPlanned=Planed start date
 DateEndPlanned=Planed end date
+DateEndPlannedShort=Planed end date
 DateStartReal=Real start date
+DateStartRealShort=Real start date
 DateEndReal=Real end date
 NbOfServices=Nb of services
diff --git a/htdocs/langs/fr_FR/contracts.lang b/htdocs/langs/fr_FR/contracts.lang
index 9b239a6ab4d..b15c895b6c3 100644
--- a/htdocs/langs/fr_FR/contracts.lang
+++ b/htdocs/langs/fr_FR/contracts.lang
@@ -32,6 +32,8 @@ ContractStartDate=Date d
 ContractEndDate=Date fin
 DateStartPlanned=Date prévue mise en service
 DateEndPlanned=Date prévue fin de service
+DateEndPlannedShort=Date prévue fin
 DateStartReal=Date effective mise en service
+DateStartRealShort=Date début en service
 DateEndReal=Date effective fin de service
 NbOfServices=Nb de services