diff --git a/src/DataValue.cs b/src/DataValue.cs
index 765178d..495be1d 100644
--- a/src/DataValue.cs
+++ b/src/DataValue.cs
@@ -245,7 +245,7 @@ namespace OpenSim.Modules.DataValue
         }
 
         [ScriptInvocation]
-        public bool osCheckDataValue(UUID hostID, UUID scriptID, string key, string value)
+        public int osCheckDataValue(UUID hostID, UUID scriptID, string key, string value)
         {
             string _filePath = getFilePath(hostID, key);
 
@@ -255,9 +255,9 @@ namespace OpenSim.Modules.DataValue
             FileInfo file = new FileInfo(_filePath);
 
             if (file.Exists)
-                return true;
+                return 1;
 
-            return false;
+            return 0;
         }
 
         #endregion