diff --git a/viewport/viewport.go b/viewport/viewport.go
index 1835b8d..11c6da7 100644
--- a/viewport/viewport.go
+++ b/viewport/viewport.go
@@ -140,7 +140,7 @@ func (m *Model) SetContent(s string) {
 // maxYOffset returns the maximum possible value of the y-offset based on the
 // viewport's content and set height.
 func (m Model) maxYOffset() int {
-	return max(0, len(m.lines)-m.Height)
+	return max(0, len(m.lines)-m.Height+m.Style.GetVerticalFrameSize())
 }
 
 // visibleLines returns the lines that should currently be visible in the