diff --git a/checks/SkyChecker.cs b/checks/SkyChecker.cs
index 7677123..52bd4f5 100644
--- a/checks/SkyChecker.cs
+++ b/checks/SkyChecker.cs
@@ -48,7 +48,7 @@ namespace ln.skyscanner.checks
                 {
                     checkStates = Timing.Meassure("scheduler: checkStates", () => SkyScanner.Instance.Entities.SkyCheckStates.ToArray());
                 }
-                return checkStates.Where((cs) => (!String.Empty.Equals(cs.Node?.Vendor) && ((cs.CheckState != CheckState.OK) || (cs.UnchangedTime < TimeSpan.FromMinutes(10))))).ToArray();
+                return checkStates.Where((cs) => (!String.Empty.Equals(cs.Node?.Vendor) && ((cs.CheckState != CheckState.OK) || ((cs.UnchangedTime < TimeSpan.FromMinutes(10)) && (cs.History.Length > 1) )))).ToArray();
             }
         }