diff --git a/public/app/features/dashboard/dashboardSrv.js b/public/app/features/dashboard/dashboardSrv.js
index cbbaae5cd56..cfba7f2dccd 100644
--- a/public/app/features/dashboard/dashboardSrv.js
+++ b/public/app/features/dashboard/dashboardSrv.js
@@ -514,6 +514,12 @@ function (angular, $, _, moment) {
               panel.thresholds.push(t1);
             }
           }
+
+          delete panel.grid.threshold1;
+          delete panel.grid.threshold1Color;
+          delete panel.grid.threshold2;
+          delete panel.grid.threshold2Color;
+          delete panel.grid.thresholdLine;
         });
       }