diff --git a/Pilz.UI.Telerik/Controls/RadValidationProvider/RadValidationRuleEx.cs b/Pilz.UI.Telerik/Controls/RadValidationProvider/RadValidationRuleEx.cs
index d075f56..2effbe6 100644
--- a/Pilz.UI.Telerik/Controls/RadValidationProvider/RadValidationRuleEx.cs
+++ b/Pilz.UI.Telerik/Controls/RadValidationProvider/RadValidationRuleEx.cs
@@ -5,7 +5,6 @@ using Telerik.WinControls.Data;
 
 namespace Pilz.UI.Telerik.Controls.RadValidationProvider;
 
-
 /// <summary>
 /// RadValidationRule provides a validation logic which compares RadControl's Property with Rule's Value. 
 /// </summary>
@@ -15,7 +14,7 @@ public class RadValidationRuleEx : FilterDescriptor, IRadValidationRuleEx
     private List<Control> controls = [];
     private string toolTipText = string.Empty;
     private bool caseSensitive = false;
-    private bool autoToolTip = true;
+    private bool autoToolTip = false;
     private string toolTipTitle = "Validation Failed";
     #endregion
 
@@ -118,7 +117,7 @@ public class RadValidationRuleEx : FilterDescriptor, IRadValidationRuleEx
     /// <summary>
     /// Enable or Disable the ToolTip when validation fails.
     /// </summary>
-    [DefaultValue(true)]
+    [DefaultValue(false)]
     public bool AutoToolTip
     {
         get { return this.autoToolTip; }