diff --git a/listframes.lua b/listframes.lua
index caef743..58b183b 100644
--- a/listframes.lua
+++ b/listframes.lua
@@ -143,11 +143,13 @@ local function updatePage(scrollPos)
 end
 
 local function estimatedHeight()
+    local firstEntryFrame = subFrames[1]
     local lastEntryFrame = subFrames[length]
-    if lastEntryFrame ~= nil then
+    if firstEntryFrame ~= nil and lastEntryFrame ~= nil then
+        local firstXPos, firstYPos = firstEntryFrame.getPosition()
         local xPos, yPos = lastEntryFrame.getPosition()
         local xSize, ySize = lastEntryFrame.getSize()
-        return yPos+ySize-1
+        return yPos-firstYPos+ySize
     else
         return length
     end