diff --git a/src/osx/cocoa/dataview.mm b/src/osx/cocoa/dataview.mm
index 237bd98b90..a2974367c2 100644
--- a/src/osx/cocoa/dataview.mm
+++ b/src/osx/cocoa/dataview.mm
@@ -1933,6 +1933,7 @@ wxCocoaDataViewControl::wxCocoaDataViewControl(wxWindow* peer,
 void wxCocoaDataViewControl::InitOutlineView(long style)
 {
     [m_OutlineView setImplementation:this];
+    [m_OutlineView setFocusRingType:NSFocusRingTypeNone];
     [m_OutlineView setColumnAutoresizingStyle:NSTableViewLastColumnOnlyAutoresizingStyle];
     [m_OutlineView setIndentationPerLevel:GetDataViewCtrl()->GetIndent()];
     NSUInteger maskGridStyle(NSTableViewGridNone);