diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 8291105b0b..5ede801083 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -1935,7 +1935,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             else
             {
-                return String.Empty;
+                return UUID.Zero.ToString();
             }
         }