1 files changed, 2 insertions, 2 deletions

diff --git a/lib/editor.ml b/lib/editor.ml
index a516b25..959b3af 100644
--- a/lib/editor.ml
+++ b/lib/editor.ml
@@ -72,8 +72,8 @@ module Action = struct
       match Option.map ~f:Buffer.cursor e.buffer with
       | None -> { e with cursor = (1, 1); offset = (0, 0) }
       | Some (cx, cy) ->
-          let dx' = Int.clamp_exn ~min:(cx - rs) ~max:cx dx
-          and dy' = Int.clamp_exn ~min:(cy - cs) ~max:cy dy in
+          let dx' = Int.clamp_exn ~min:(cx - rs + 1) ~max:cx dx
+          and dy' = Int.clamp_exn ~min:(cy - cs + 1) ~max:cy dy in
           { e with cursor = (cx - dx' + 1, cy - dy' + 1); offset = (dx', dy') }
     in
     modify ~f:aux