diff --git a/table.go b/table.go
index e3d1bbf..40351a5 100644
--- a/table.go
+++ b/table.go
@@ -176,7 +176,7 @@ func (table *Table) Buffer() Buffer {
 		if table.Separator {
 			border := DefaultTxBuilder.Build(strings.Repeat("─", table.Width-2), table.FgColor, table.BgColor)
 			for i, cell := range border {
-				buffer.Set(i+1, pointerY+1, cell)
+				buffer.Set(table.innerArea.Min.X+i, pointerY+1, cell)
 			}
 		}
 	}