diff --git a/ci.sh b/ci.sh
index 179c3d2..c833853 100755
--- a/ci.sh
+++ b/ci.sh
@@ -3,6 +3,7 @@
 meson --buildtype=release --prefix=/usr build
 DESTDIR=../dst ninja -C build install
 ./dst/usr/bin/ksh -c "kill -l"
+[ "`echo 'kill -l 9' | ./dst/usr/bin/ksh`" != KILL ] && exit 1
 [ -n "`./dst/usr/bin/ksh -c 'echo &' 2>&1 | grep 'internal error'`" ] && exit 1
 [ "`./dst/usr/bin/ksh -c 'echo $((1337 * 2))'`" -ne 2674 ] && exit 1
 [ "`./dst/usr/bin/ksh -c 'seq 1337 | sort -rn | head -n 1'`" -ne 1337 ] && exit 1
diff --git a/subprojects/lolibc b/subprojects/lolibc
index ba895ed..f8180b7 160000
--- a/subprojects/lolibc
+++ b/subprojects/lolibc
@@ -1 +1 @@
-Subproject commit ba895ed446111395464dabc474ed54ca3ec9138a
+Subproject commit f8180b727b43e223b98126efd8a831394c29a6f1