diff --git a/passepartout b/passepartout
index fdf8d3a..3febe3f 100755
--- a/passepartout
+++ b/passepartout
@@ -408,8 +408,8 @@ case "$COMMAND" in
 LISPEOF
         # Capture terminal dimensions in non-standard env vars
         # (SBCL strips COLUMNS/LINES but leaves MY_* alone).
-        local ts=$(stty size 2>/dev/null)
-        export MY_TERM_LINES="${ts%% *}" MY_TERM_COLS="${ts##* }"
+        ts=$(stty size 2>/dev/null)
+        export MY_TERM_ROWS="${ts%% *}" MY_TERM_COLS="${ts##* }"
         # Clear stale cl-tty cache to ensure latest backend-size fixes
         find ~/.cache/common-lisp -name "*.fasl" -path "*cl-tty*" -delete 2>/dev/null
         exec sbcl --noinform --load /tmp/tui-load.lisp