diff --git a/data/core/commands/doc.lua b/data/core/commands/doc.lua
index 25dd3fa2..01c8cab9 100755
--- a/data/core/commands/doc.lua
+++ b/data/core/commands/doc.lua
@@ -69,7 +69,7 @@ end
 local function split_cursor(direction)
   local new_cursors = {}
   for _, line1, col1 in doc():get_selections() do
-    if line1 > 1 and line1 < #doc().lines then
+    if line1 + direction >= 1 and line1 + direction <= #doc().lines then
       table.insert(new_cursors, { line1 + direction, col1 })
     end
   end