diff --git a/src/helm/env.d/preprod/values.desk.yaml.gotmpl b/src/helm/env.d/preprod/values.desk.yaml.gotmpl
index 2145d26..b6e581c 100644
--- a/src/helm/env.d/preprod/values.desk.yaml.gotmpl
+++ b/src/helm/env.d/preprod/values.desk.yaml.gotmpl
@@ -42,6 +42,7 @@ backend:
     OIDC_OP_TOKEN_ENDPOINT: https://fca.integ01.dev-agentconnect.fr/api/v2/token
     OIDC_OP_USER_ENDPOINT: https://fca.integ01.dev-agentconnect.fr/api/v2/userinfo
     OIDC_OP_LOGOUT_ENDPOINT: https://fca.integ01.dev-agentconnect.fr/api/v2/session/end
+    OIDC_ORGANIZATION_REGISTRATION_ID_FIELD: "siret"
     OIDC_RP_CLIENT_ID:
       secretKeyRef:
         name: backend
diff --git a/src/helm/env.d/production/values.desk.yaml.gotmpl b/src/helm/env.d/production/values.desk.yaml.gotmpl
index a9d0359..05df579 100644
--- a/src/helm/env.d/production/values.desk.yaml.gotmpl
+++ b/src/helm/env.d/production/values.desk.yaml.gotmpl
@@ -42,6 +42,7 @@ backend:
     OIDC_OP_TOKEN_ENDPOINT: https://auth.agentconnect.gouv.fr/api/v2/token
     OIDC_OP_USER_ENDPOINT: https://auth.agentconnect.gouv.fr/api/v2/userinfo
     OIDC_OP_LOGOUT_ENDPOINT: https://auth.agentconnect.gouv.fr/api/v2/session/end
+    OIDC_ORGANIZATION_REGISTRATION_ID_FIELD: "siret"
     OIDC_RP_CLIENT_ID:
       secretKeyRef:
         name: backend
diff --git a/src/helm/env.d/staging/values.desk.yaml.gotmpl b/src/helm/env.d/staging/values.desk.yaml.gotmpl
index 15f1759..95daa9e 100644
--- a/src/helm/env.d/staging/values.desk.yaml.gotmpl
+++ b/src/helm/env.d/staging/values.desk.yaml.gotmpl
@@ -44,6 +44,7 @@ backend:
     OIDC_OP_LOGOUT_ENDPOINT: https://fca.integ01.dev-agentconnect.fr/api/v2/session/end
     OIDC_OP_INTROSPECTION_ENDPOINT: https://fca.integ01.dev-agentconnect.fr/api/v2/checktoken
     OIDC_OP_URL: https://fca.integ01.dev-agentconnect.fr/api/v2
+    OIDC_ORGANIZATION_REGISTRATION_ID_FIELD: "siret"
     OIDC_RP_CLIENT_ID:
       secretKeyRef:
         name: backend