diff --git a/src/DataValue.cs b/src/DataValue.cs
index 1d9bd7c..6205377 100644
--- a/src/DataValue.cs
+++ b/src/DataValue.cs
@@ -248,7 +248,7 @@ namespace OpenSim.Modules.DataValue
         }
 
         [ScriptInvocation]
-        public int osCheckDataValue(UUID hostID, UUID scriptID, string key, string value)
+        public int osCheckDataValue(UUID hostID, UUID scriptID, string key)
         {
             string _filePath = getFilePath(hostID, key);