diff --git a/backend/src/controllers/v3/authController.ts b/backend/src/controllers/v3/authController.ts
index a50561774..61edffb42 100644
--- a/backend/src/controllers/v3/authController.ts
+++ b/backend/src/controllers/v3/authController.ts
@@ -74,7 +74,7 @@ export const login1 = async (req: Request, res: Response) => {
                 // generate server-side public key
                 const serverPublicKey = server.getPublicKey();
                 await LoginSRPDetail.findOneAndReplace({
-                    userId: user.id,
+                    email: email
                 }, {
                     email,
                     userId: user.id,
@@ -125,7 +125,7 @@ export const login2 = async (req: Request, res: Response) => {
             })
         }
 
-        const loginSRPDetail = await LoginSRPDetail.findOneAndDelete({ userId: user.id });
+        const loginSRPDetail = await LoginSRPDetail.findOneAndDelete({ email: email })
 
         if (!loginSRPDetail) {
             return BadRequestError(Error("Failed to find login details for SRP"))
diff --git a/backend/src/models/loginSRPDetail.ts b/backend/src/models/loginSRPDetail.ts
index 0cd3ed1d8..dde59233d 100644
--- a/backend/src/models/loginSRPDetail.ts
+++ b/backend/src/models/loginSRPDetail.ts
@@ -20,10 +20,6 @@ const loginSRPDetailSchema = new Schema<ILoginSRPDetail>(
 			unique: true
 		},
 		serverBInt: { type: mongoose.Schema.Types.Buffer },
-		userId: {
-			type: String,
-			unique: true,
-		},
 		expireAt: { type: Date }
 	}
 );