diff --git a/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/LSL/Compiler.cs b/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/LSL/Compiler.cs
index e2e8d36088..d5271a1481 100644
--- a/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/LSL/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/DotNetEngine/Compiler/LSL/Compiler.cs
@@ -491,7 +491,8 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine.Compiler.LSL
                     //}
                     //catch (KeyNotFoundException)  // we don't have this line/column mapped
                     //{
-                    //    lslPos = new KeyValuePair<int, int>(-1, -1);
+                    //    m_scriptEngine.Log.Debug(String.Format("[{0}]: Lookup of C# line {1}, column {2} failed.", m_scriptEngine.ScriptEngineName, CompErr.Line, CompErr.Column));
+                    //    lslPos = new KeyValuePair<int, int>(-CompErr.Line, -CompErr.Column);
                     //}
 
                     // The Second Life viewer's script editor begins
diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
index e8cfdf7f3e..cbf79808b9 100644
--- a/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
@@ -555,7 +555,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
                         }
                         catch (KeyNotFoundException)  // we don't have this line/column mapped
                         {
-                            lslPos = new KeyValuePair<int, int>(-1, -1);
+                            m_scriptEngine.Log.Debug(String.Format("[Compiler]: Lookup of C# line {0}, column {1} failed.", CompErr.Line, CompErr.Column));
+                            lslPos = new KeyValuePair<int, int>(-CompErr.Line, -CompErr.Column);
                         }
 
                         // The Second Life viewer's script editor begins