diff --git a/src/Core/Constants.cs b/src/Core/Constants.cs
index 97da6e8fc2..9a18cd32d9 100644
--- a/src/Core/Constants.cs
+++ b/src/Core/Constants.cs
@@ -167,6 +167,7 @@ public static class FeatureFlagKeys
     public const string SafariAccountSwitching = "pm-5594-safari-account-switching";
     public const string PM27086_UpdateAuthenticationApisForInputPassword = "pm-27086-update-authentication-apis-for-input-password";
     public const string PM27044_UpdateRegistrationApis = "pm-27044-update-registration-apis";
+    public const string PM31088_MasterPasswordServiceEmitSalt = "pm-31088-master-password-service-emit-salt";
 
     /* Autofill Team */
     public const string SSHAgent = "ssh-agent";