diff --git a/tests/pexpects/disable_mouse.py b/tests/pexpects/disable_mouse.py
index 191715b3d..bfe7fc2a3 100644
--- a/tests/pexpects/disable_mouse.py
+++ b/tests/pexpects/disable_mouse.py
@@ -21,6 +21,9 @@ sp.expect_str("reader: Disabling mouse tracking")
 sp.send("\x1b[TABCDEF")
 sp.expect_str("reader: Disabling mouse tracking")
 
+# sleep to catch up under ASAN
+sp.sleep(0.5)
+
 # Extended SGR sequences.
 sp.send("\x1b[<1;2;3M")
 sp.expect_str("reader: Disabling mouse tracking")
diff --git a/tests/pexpects/signals.py b/tests/pexpects/signals.py
index 7c03be3f9..e8dee8c7b 100644
--- a/tests/pexpects/signals.py
+++ b/tests/pexpects/signals.py
@@ -47,8 +47,8 @@ expect_prompt()
 sendline("function postexec --on-event fish_postexec; echo fish_postexec spotted; end")
 expect_prompt()
 sendline("read")
-expect_re(r"\r\n?read> (\x1b\[\?1004h)?$")
 sleep(0.200)
+expect_re(r"\r\n?read> (\x1b\[\?1004h)?$")
 os.kill(sp.spawn.pid, signal.SIGINT)
 expect_str("fish_postexec spotted")
 expect_prompt()
@@ -59,7 +59,7 @@ sendline(
 )
 expect_prompt()
 sendline("sleep 5")
-sleep(0.200)
+sleep(0.300)
 subprocess.call(["pkill", "-INT", "-P", str(sp.spawn.pid), "sleep"])
 expect_str("fish_kill_signal 2")
 expect_prompt()