diff --git a/scan.i b/scan.i
index 8da81bfe..a2b8c55e 100644
--- a/scan.i
+++ b/scan.i
@@ -14,6 +14,7 @@
                    float      fStart;
                    float      fStep;
                    float      *fData;
+		   int        dataList;
                   }VarEntry, *pVarEntry;
 /*--------------------------------------------------------------------------*/
   typedef struct {