diff --git a/regress/kill-session-process-exit.sh b/regress/kill-session-process-exit.sh
new file mode 100644
index 00000000..27d883e2
--- /dev/null
+++ b/regress/kill-session-process-exit.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# when we kill a session, processes running in it should be killed
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+$TMUX new -d 'sleep 1000' || exit 1
+P=$($TMUX display -pt0:0.0 '#{pane_pid}')
+$TMUX new -d || exit 1
+sleep 1
+$TMUX kill-session -t0:
+sleep 1
+kill -0 $P 2>/dev/null && exit 1
+$TMUX kill-server 2>/dev/null
+
+exit 0