diff --git a/tests/dev-ptmx b/tests/dev-ptmx
index 72bb974..ee12341 100644
--- a/tests/dev-ptmx
+++ b/tests/dev-ptmx
@@ -116,7 +116,7 @@ END
 
 # use script to create a fake tty
 # run all tests as root and as a normal user (the latter requires ptmxmode=666)
-script -qfc "$prefix {{ CMD }} --mode={{ MODE }} --variant=apt \
+script -qfec "$prefix {{ CMD }} --mode={{ MODE }} --variant=apt \
 	--include=gcc,libc6-dev,python3,adduser \
 	--customize-hook='chroot \"\$1\" adduser --gecos user --disabled-password user' \
 	--customize-hook='chroot \"\$1\" python3 -c \"import pty; print(pty.openpty())\"' \
diff --git a/tests/progress-bars-on-fake-tty b/tests/progress-bars-on-fake-tty
index 05c2e7a..e403111 100644
--- a/tests/progress-bars-on-fake-tty
+++ b/tests/progress-bars-on-fake-tty
@@ -2,5 +2,5 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-script -qfc "{{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}" /dev/null
+script -qfec "{{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}" /dev/null
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -