diff --git a/winhlp.lua b/winhlp.lua
index af6ce32..656db8b 100644
--- a/winhlp.lua
+++ b/winhlp.lua
@@ -13,7 +13,7 @@ local function alignRight(termlike, length)
     local tw, th = termlike.getSize()
     local x, y = termlike.getCursorPos()
     termlike.setCursorPos(math.min(x, tw-length+1), y)
-    return math.max(0, tw-length-x)
+    return math.max(0, tw-length-x+1)
 end