diff --git a/EonaCat.DnsTester/MainForm.cs b/EonaCat.DnsTester/MainForm.cs
index ff580ab..0f65290 100644
--- a/EonaCat.DnsTester/MainForm.cs
+++ b/EonaCat.DnsTester/MainForm.cs
@@ -86,13 +86,9 @@ namespace EonaCat.DnsTester
 				return;
 			}
 
-			Task.Run(() => 
-			{
-                IsRunning = true;
-                CheckDNS(CleanNames, CleanNamesCount, DNS1, DNS2);
-				IsRunning = false;
-			});
-
+            IsRunning = true;
+            CheckDNS(CleanNames, CleanNamesCount, DNS1, DNS2);
+			IsRunning = false;
 		}