diff --git a/Libraries/Screen.lua b/Libraries/Screen.lua
index 5f19e1f9..b5a55051 100755
--- a/Libraries/Screen.lua
+++ b/Libraries/Screen.lua
@@ -562,12 +562,12 @@ local function update(force)
 				end
 
 				-- Group pixels that need to be drawn by background and foreground
-				changes[currentFrameBackground] = changes[currentFrameBackground] or {}
-				changesCurrentFrameBackground = changes[currentFrameBackground]
-				changesCurrentFrameBackground[currentFrameForeground] = changesCurrentFrameBackground[currentFrameForeground] or {index = 1}
-				changesCurrentFrameBackgroundCurrentFrameForeground = changesCurrentFrameBackground[currentFrameForeground]
+				changesCurrentFrameBackground = changes[currentFrameBackground] or {}
+				changes[currentFrameBackground] = changesCurrentFrameBackground
+				changesCurrentFrameBackgroundCurrentFrameForeground = changesCurrentFrameBackground[currentFrameForeground] or {index = 1}
+				changesCurrentFrameBackground[currentFrameForeground] = changesCurrentFrameBackgroundCurrentFrameForeground
+
 				changesCurrentFrameBackgroundCurrentFrameForegroundIndex = changesCurrentFrameBackgroundCurrentFrameForeground.index
-				
 				changesCurrentFrameBackgroundCurrentFrameForeground[changesCurrentFrameBackgroundCurrentFrameForegroundIndex], changesCurrentFrameBackgroundCurrentFrameForegroundIndex = x, changesCurrentFrameBackgroundCurrentFrameForegroundIndex + 1
 				changesCurrentFrameBackgroundCurrentFrameForeground[changesCurrentFrameBackgroundCurrentFrameForegroundIndex], changesCurrentFrameBackgroundCurrentFrameForegroundIndex = y, changesCurrentFrameBackgroundCurrentFrameForegroundIndex + 1
 				changesCurrentFrameBackgroundCurrentFrameForeground[changesCurrentFrameBackgroundCurrentFrameForegroundIndex], changesCurrentFrameBackgroundCurrentFrameForegroundIndex = tableConcat(equalChars), changesCurrentFrameBackgroundCurrentFrameForegroundIndex + 1