diff --git a/src/NServiceBus.Transport.SqlServer/SqlServerTransportInfrastructure.cs b/src/NServiceBus.Transport.SqlServer/SqlServerTransportInfrastructure.cs
index 72835a9d6..56c15a6d2 100644
--- a/src/NServiceBus.Transport.SqlServer/SqlServerTransportInfrastructure.cs
+++ b/src/NServiceBus.Transport.SqlServer/SqlServerTransportInfrastructure.cs
@@ -132,7 +132,7 @@ public override TransportReceiveInfrastructure ConfigureReceiveInfrastructure()
 
             IExpiredMessagesPurger expiredMessagesPurger;
             bool validateExpiredIndex;
-            if (settings.GetOrDefault<bool>(SettingsKeys.PurgeEnableKey))
+            if (settings.GetOrDefault<bool>(SettingsKeys.PurgeEnableKey) == false)
             {
                 diagnostics.Add("NServiceBus.Transport.SqlServer.ExpiredMessagesPurger", new
                 {