diff --git a/regress/new-session-size.sh b/regress/new-session-size.sh
index 5493054b..89fc580d 100644
--- a/regress/new-session-size.sh
+++ b/regress/new-session-size.sh
@@ -14,13 +14,13 @@ trap "rm -f $TMP" 0 1 15
 
 $TMUX -f/dev/null new -d </dev/null || exit 1
 sleep 1
-$TMUX ls -F "#{session_width} #{session_height}" >$TMP
+$TMUX ls -F "#{window_width} #{window_height}" >$TMP
 printf "80 24\n"|cmp -s $TMP - || exit 1
 $TMUX kill-server 2>/dev/null
 
 $TMUX -f/dev/null new -d -x 100 -y 50 </dev/null || exit 1
 sleep 1
-$TMUX ls -F "#{session_width} #{session_height}" >$TMP
+$TMUX ls -F "#{window_width} #{window_height}" >$TMP
 printf "100 50\n"|cmp -s $TMP - || exit 1
 $TMUX kill-server 2>/dev/null