diff --git a/.env.example b/.env.example
index 17ef3e5a..c94afc0a 100644
--- a/.env.example
+++ b/.env.example
@@ -5,7 +5,7 @@ NODE_ENV=production
 # Configuration IDNOT
 IDNOT_ANNUARY_BASE_URL=https://qual-api.notaires.fr/annuaire
 # IDNOT_REDIRECT_URI=http://local.4nkweb.com:3004/authorized-client
-IDNOT_REDIRECT_URI=https://dev4.4nkweb.com/lecoffre/authorized-client
+IDNOT_REDIRECT_URI=http://local.lecoffreio.4nkweb:3000/authorized-client
 IDNOT_TOKEN_URL=https://qual-connexion.idnot.fr/user/IdPOAuth2/token/idnot_idp_v1
 IDNOT_API_BASE_URL=https://qual-api.notaires.fr/annuaire
 
diff --git a/src/front/Api/Auth/IdNot/index.ts b/src/front/Api/Auth/IdNot/index.ts
index 3c96a210..a89fe015 100644
--- a/src/front/Api/Auth/IdNot/index.ts
+++ b/src/front/Api/Auth/IdNot/index.ts
@@ -27,7 +27,11 @@ export default class Auth extends BaseApiService {
 
 	public async loginWithIdNot() {
 		const variables = FrontendVariables.getInstance();
-		const redirectUri = variables.IDNOT_REDIRECT_URI || `${variables.FRONT_APP_HOST}/authorized-client`;
+		let redirectUri = variables.IDNOT_REDIRECT_URI || "";
+		if (!redirectUri) {
+			console.warn("[IDNOT] NEXT_PUBLIC_IDNOT_REDIRECT_URI vide; fallback sur FRONT_APP_HOST/authorized-client");
+			redirectUri = `${variables.FRONT_APP_HOST}/authorized-client`;
+		}
 		const url = new URL(
 			`${variables.IDNOT_BASE_URL + variables.IDNOT_AUTHORIZE_ENDPOINT}?client_id=${variables.IDNOT_CLIENT_ID}&redirect_uri=${redirectUri}&scope=openid,profile&response_type=code`,
 		);
diff --git a/src/front/Components/Layouts/Login/StepEmail/index.tsx b/src/front/Components/Layouts/Login/StepEmail/index.tsx
index 75216c72..1598e87b 100644
--- a/src/front/Components/Layouts/Login/StepEmail/index.tsx
+++ b/src/front/Components/Layouts/Login/StepEmail/index.tsx
@@ -43,7 +43,11 @@ export default function StepEmail(props: IProps) {
 	const error = router.query["error"];
 	const redirectUserOnConnection = useCallback(() => {
 		const variables = FrontendVariables.getInstance();
-		const redirectUri = variables.IDNOT_REDIRECT_URI || `${variables.FRONT_APP_HOST}/authorized-client`;
+		let redirectUri = variables.IDNOT_REDIRECT_URI || "";
+		if (!redirectUri) {
+			console.warn("[IDNOT] NEXT_PUBLIC_IDNOT_REDIRECT_URI vide; fallback sur FRONT_APP_HOST/authorized-client");
+			redirectUri = `${variables.FRONT_APP_HOST}/authorized-client`;
+		}
 		const authorizeBase = `${variables.IDNOT_BASE_URL}${variables.IDNOT_AUTHORIZE_ENDPOINT}`;
 		router.push(
 			`${authorizeBase}?client_id=${variables.IDNOT_CLIENT_ID}&redirect_uri=${encodeURIComponent(redirectUri)}&scope=openid,profile&response_type=code`,