diff --git a/src/fr/devinsy/statoolinfos/core/Organization.java b/src/fr/devinsy/statoolinfos/core/Organization.java
index a14b993..9545e33 100644
--- a/src/fr/devinsy/statoolinfos/core/Organization.java
+++ b/src/fr/devinsy/statoolinfos/core/Organization.java
@@ -516,7 +516,7 @@ public class Organization extends PathPropertyList
     {
         LocalDate result;
 
-        result = getDate("organization.memberof." + this.federation.getName() + ".enddate");
+        result = getDate("organization.memberof." + this.federation.getTechnicalName() + ".enddate");
 
         //
         return result;
@@ -548,7 +548,7 @@ public class Organization extends PathPropertyList
     {
         String result;
 
-        result = get("organization.memberof." + this.federation.getName() + ".enddate");
+        result = get("organization.memberof." + this.federation.getTechnicalName() + ".enddate");
 
         //
         return result;
@@ -586,7 +586,7 @@ public class Organization extends PathPropertyList
     {
         LocalDate result;
 
-        result = getDate("organization.memberof." + this.federation.getName() + ".startdate");
+        result = getDate("organization.memberof." + this.federation.getTechnicalName() + ".startdate");
 
         //
         return result;
@@ -618,7 +618,7 @@ public class Organization extends PathPropertyList
     {
         String result;
 
-        result = get("organization.memberof." + this.federation.getName() + ".startdate");
+        result = get("organization.memberof." + this.federation.getTechnicalName() + ".startdate");
 
         //
         return result;