diff --git a/modules/drivers/tty.lua b/modules/drivers/tty.lua
index 71539f1..3cfa4be 100644
--- a/modules/drivers/tty.lua
+++ b/modules/drivers/tty.lua
@@ -8,7 +8,7 @@ function tty(gA,sA,sI,fg,bg)
  gP.fill(1,1,sx,sy," ")
  local function cv()
   if cx > sx then cx,cy=1,cy+1 end
-  if cx < 1 then cx,cy=1,cy-1 end
+  if cx < 1 then cx,cy=sx,cy-1 end
   if cy < 1 then cx,cy=1,1 end
   if cy > sy then gP.copy(1,2,sx,sy-1,0,-1) gP.fill(1,sy,sx,1," ") cx,cy=1,sy end
  end
diff --git a/modules/drivers/vt52.lua b/modules/drivers/vt52.lua
index e729303..2ac5409 100644
--- a/modules/drivers/vt52.lua
+++ b/modules/drivers/vt52.lua
@@ -8,7 +8,7 @@ function tty(gA,sA,sI,fg,bg)
  gP.fill(1,1,sx,sy," ")
  local function cv()
   if cx > sx then cx,cy=1,cy+1 end
-  if cx < 1 then cx,cy=1,cy-1 end
+  if cx < 1 then cx,cy=sx,cy-1 end
   if cy < 1 then cx,cy=1,1 end
   if cy > sy then gP.copy(1,2,sx,sy-1,0,-1) gP.fill(1,sy,sx,1," ") cx,cy=1,sy end
  end