diff --git a/src/System.Windows.Forms.Design/src/System/Windows/Forms/Design/FlowLayoutPanelDesigner .cs b/src/System.Windows.Forms.Design/src/System/Windows/Forms/Design/FlowLayoutPanelDesigner .cs
index 2791cd63fbd..8c84efa9e70 100644
--- a/src/System.Windows.Forms.Design/src/System/Windows/Forms/Design/FlowLayoutPanelDesigner .cs	
+++ b/src/System.Windows.Forms.Design/src/System/Windows/Forms/Design/FlowLayoutPanelDesigner .cs	
@@ -898,6 +898,7 @@ protected override void OnDragOver(DragEventArgs de)
         {
             // Here, we're at the 'end' of the FlowLayoutPanel - not over
             // any controls and not in a row/column.
+            _insertionIndex = FlowLayoutPanel.Controls.Count;
             EraseIBar();
         }
     }