diff --git a/back/src/Kyoo.Authentication/Controllers/OidcController.cs b/back/src/Kyoo.Authentication/Controllers/OidcController.cs
index 0a1a4f72..11f951c9 100644
--- a/back/src/Kyoo.Authentication/Controllers/OidcController.cs
+++ b/back/src/Kyoo.Authentication/Controllers/OidcController.cs
@@ -110,4 +110,10 @@ public class OidcController(
 		}
 		return user;
 	}
+
+	public async Task<User> LinkAccount(Guid userId, string provider, string code)
+	{
+		(_, ExternalToken extToken) = await _TranslateCode(provider, code);
+		return await users.AddExternalToken(userId, provider, extToken);
+	}
 }
diff --git a/back/src/Kyoo.Authentication/Views/AuthApi.cs b/back/src/Kyoo.Authentication/Views/AuthApi.cs
index 58ae93a7..7da38e8e 100644
--- a/back/src/Kyoo.Authentication/Views/AuthApi.cs
+++ b/back/src/Kyoo.Authentication/Views/AuthApi.cs
@@ -175,7 +175,10 @@ namespace Kyoo.Authentication.Views
 			if (code == null)
 				return BadRequest(new RequestError("Invalid code."));
 
-			User user = await oidc.LoginViaCode(provider, code);
+			Guid? userId = User.GetId();
+			User user = userId.HasValue
+				? await oidc.LinkAccount(userId.Value, provider, code)
+				: await oidc.LoginViaCode(provider, code);
 			return new JwtToken(
 				tokenController.CreateAccessToken(user, out TimeSpan expireIn),
 				await tokenController.CreateRefreshToken(user),
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
index fd5f9788..785bde85 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
@@ -23,6 +23,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using Kyoo.Abstractions.Controllers;
 using Kyoo.Abstractions.Models;
+using Kyoo.Abstractions.Models.Exceptions;
 using Kyoo.Abstractions.Models.Permissions;
 using Kyoo.Abstractions.Models.Utils;
 using Kyoo.Postgresql;
@@ -109,4 +110,12 @@ public class UserRepository(
 			null
 		);
 	}
+
+	public async Task<User> AddExternalToken(Guid userId, string provider, ExternalToken token)
+	{
+		User user = await GetWithTracking(userId);
+		user.ExternalId[provider] = token;
+		await database.SaveChangesAsync();
+		return user;
+	}
 }