diff --git a/utils/regr/regr_syy.cpp b/utils/regr/regr_syy.cpp
index 3ac51a0c6..c3a7f8d22 100644
--- a/utils/regr/regr_syy.cpp
+++ b/utils/regr/regr_syy.cpp
@@ -161,7 +161,7 @@ mcsv1_UDAF::ReturnCode regr_syy::dropValue(mcsv1Context* context, ColumnDatum* v
   if (cnt == 0)
   {
     data->avgy = 0;
-    data->cx = 0;
+    data->cy = 0;
   }
   else
   {