diff --git a/OpenSim/Data/MySQL/MySQLSimulationData.cs b/OpenSim/Data/MySQL/MySQLSimulationData.cs
index e6267074ab..3306968a7d 100644
--- a/OpenSim/Data/MySQL/MySQLSimulationData.cs
+++ b/OpenSim/Data/MySQL/MySQLSimulationData.cs
@@ -66,7 +66,7 @@ namespace OpenSim.Data.MySQL
             Initialise(connectionString);
         }
 
-        public void Initialise(string connectionString)
+        public virtual void Initialise(string connectionString)
         {
             m_connectionString = connectionString;