diff --git a/packages/twenty-front/src/modules/domain-manager/hooks/useBuildSearchParamsFromUrlSyncedStates.ts b/packages/twenty-front/src/modules/domain-manager/hooks/useBuildSearchParamsFromUrlSyncedStates.ts
index 44a83f4da6..e5b92c2907 100644
--- a/packages/twenty-front/src/modules/domain-manager/hooks/useBuildSearchParamsFromUrlSyncedStates.ts
+++ b/packages/twenty-front/src/modules/domain-manager/hooks/useBuildSearchParamsFromUrlSyncedStates.ts
@@ -3,6 +3,7 @@ import { useCallback } from 'react';
 import { billingCheckoutSessionState } from '@/auth/states/billingCheckoutSessionState';
 import { returnToPathState } from '@/auth/states/returnToPathState';
 import { BILLING_CHECKOUT_SESSION_DEFAULT_VALUE } from '@/settings/billing/constants/BillingCheckoutSessionDefaultValue';
+import { i18n } from '@lingui/core';
 import { isNonEmptyString } from '@sniptt/guards';
 import { useStore } from 'jotai';
 
@@ -19,6 +20,7 @@ export const useBuildSearchParamsFromUrlSyncedStates = () => {
           }
         : {}),
       ...(isNonEmptyString(returnToPath) ? { returnToPath } : {}),
+      ...(isNonEmptyString(i18n.locale) ? { locale: i18n.locale } : {}),
     };
 
     return output;
diff --git a/packages/twenty-server/src/engine/core-modules/auth/auth.resolver.ts b/packages/twenty-server/src/engine/core-modules/auth/auth.resolver.ts
index ce3083bcc9..28d0e39519 100644
--- a/packages/twenty-server/src/engine/core-modules/auth/auth.resolver.ts
+++ b/packages/twenty-server/src/engine/core-modules/auth/auth.resolver.ts
@@ -398,6 +398,7 @@ export class AuthResolver {
     const user = await this.signInUpService.signUpWithoutWorkspace(
       {
         email: signUpInput.email,
+        locale: signUpInput.locale,
       },
       {
         provider: AuthProviderEnum.Password,
diff --git a/packages/twenty-server/src/engine/core-modules/auth/services/auth.service.ts b/packages/twenty-server/src/engine/core-modules/auth/services/auth.service.ts
index 3132a73cab..2ce6cff71a 100644
--- a/packages/twenty-server/src/engine/core-modules/auth/services/auth.service.ts
+++ b/packages/twenty-server/src/engine/core-modules/auth/services/auth.service.ts
@@ -974,6 +974,7 @@ export class AuthService {
             lastName,
             email,
             picture,
+            locale,
             isEmailAlreadyVerified: true,
           },
           {