diff --git a/.github/workflows/test-build.yml b/.github/workflows/test-build.yml
index d9cadfa..5f7a76a 100644
--- a/.github/workflows/test-build.yml
+++ b/.github/workflows/test-build.yml
@@ -60,7 +60,7 @@ jobs:
         - stretch
 
         debootstrap:
-        - ''
+        - debootstrap
         - mmdebstrap
 
         exclude:
diff --git a/README.md b/README.md
index 25bcde4..8e4c99f 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ grml-debootstrap
 
 [![test-build](https://github.com/grml/grml-debootstrap/actions/workflows/test-build.yml/badge.svg)](https://github.com/grml/grml-debootstrap/actions/workflows/test-build.yml)
 
-This tool is a wrapper suite around debootstrap and cdebootstrap
+This tool is a wrapper suite around mmdebstrap and debootstrap
 to ease installation of a pure [Debian](https://debian.org/) system.
 
 Configuration can be done on the command line, in a dialog frontend
diff --git a/config b/config
index cd562e9..c825170 100644
--- a/config
+++ b/config
@@ -101,8 +101,8 @@
 
 # Name of debootstrap executable.
 # Supported values: 'debootstrap', 'cdebootstrap', 'mmdebstrap'
-# Default: 'debootstrap'
-# DEBOOTSTRAP='debootstrap'
+# Default: 'mmdebstrap'
+# DEBOOTSTRAP='mmdebstrap'
 
 # Pass extra options to debootstrap.
 # Default: no default.
diff --git a/debian/control b/debian/control
index 15e4ce0..d71e392 100644
--- a/debian/control
+++ b/debian/control
@@ -25,7 +25,7 @@ Architecture: all
 Depends:
  bash (>= 4.3-11+deb8u2),
  debian-archive-keyring,
- debootstrap (>= 1.0.65) | cdebootstrap (>= 0.3.16) | mmdebstrap,
+ mmdebstrap | debootstrap (>= 1.0.65) | cdebootstrap (>= 0.3.16),
  dosfstools,
  e2fsprogs,
  fdisk | util-linux (<< 2.29.2-3~),
diff --git a/grml-debootstrap b/grml-debootstrap
index 0cf61f8..ed351f9 100755
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -50,7 +50,7 @@ MNTPOINT="/mnt/debootstrap.$$"
 [ -n "$CONFFILES" ] || CONFFILES='/etc/debootstrap'
 [ -n "$DEBCONF" ] || DEBCONF='yes'
 [ -n "$DEBIAN_FRONTEND" ] || DEBIAN_FRONTEND='noninteractive'
-[ -n "$DEBOOTSTRAP" ] || DEBOOTSTRAP='debootstrap'
+[ -n "$DEBOOTSTRAP" ] || DEBOOTSTRAP='mmdebstrap'
 [ -n "$DEFAULT_LANGUAGE" ] || DEFAULT_LANGUAGE='en_US:en'
 [ -n "$DEFAULT_LOCALES" ] || DEFAULT_LOCALES='en_US.UTF-8'
 [ -n "$DISK_IDENTIFIER" ] || DISK_IDENTIFIER='26ada0c0-1165-4098-884d-aafd2220c2c6'
diff --git a/grml-debootstrap.8.txt b/grml-debootstrap.8.txt
index 49c05cb..c9e43b1 100644
--- a/grml-debootstrap.8.txt
+++ b/grml-debootstrap.8.txt
@@ -3,7 +3,7 @@ grml-debootstrap(8)
 
 Name
 ----
-grml-debootstrap - wrapper around debootstrap for installing plain Debian
+grml-debootstrap - wrapper around mmdebstrap for installing plain Debian
 
 Synopsis
 --------
@@ -14,8 +14,8 @@ image:images/screenshot.png[Screenshot]
 Introduction
 ------------
 
-grml-debootstrap is a wrapper suite around debootstrap (and cdebootstrap and mmdebstrap if you
-want) for installing a plain Debian system very fast and easy.
+grml-debootstrap is a wrapper suite around mmdebstrap (and debootstrap and
+cdebootstrap) for installing a plain Debian system very fast and easy.
 
 All you have to do is adjust a few variables in the configuration file
 /etc/debootstrap/config or specify some command line options and invoke
diff --git a/tests/build-vm-and-test.sh b/tests/build-vm-and-test.sh
index c88c6c5..7d5f045 100755
--- a/tests/build-vm-and-test.sh
+++ b/tests/build-vm-and-test.sh
@@ -66,7 +66,7 @@ if [ "$1" == "run" ]; then
     -e DEBOOTSTRAP="$DEBOOTSTRAP" \
     -w /code \
     debian:"$HOST_RELEASE" \
-    bash -c './tests/docker-install-deb.sh '"$DEB_NAME"' && ./tests/docker-build-vm.sh '"$(id -u)"' '"/code/$TARGET"' '"$RELEASE"
+    bash -c './tests/docker-install-deb.sh '"$DEB_NAME"' '"$DEBOOTSTRAP"' && ./tests/docker-build-vm.sh '"$(id -u)"' '"/code/$TARGET"' '"$RELEASE"
 
 elif [ "$1" == "test" ]; then
   # run tests from inside Debian system
diff --git a/tests/docker-install-deb.sh b/tests/docker-install-deb.sh
index b056952..36cf942 100755
--- a/tests/docker-install-deb.sh
+++ b/tests/docker-install-deb.sh
@@ -6,9 +6,9 @@
 
 set -eu -o pipefail
 
-if [ "$#" -ne 1 ]; then
+if [ "$#" -ne 2 ]; then
   echo "$0: Invalid arguments" >&2
-  echo "Expect: $0 DEB_NAME" >&2
+  echo "Expect: $0 DEB_NAME DEBOOTSTRAP" >&2
   exit 1
 fi
 DEB_NAME="$1"
@@ -16,4 +16,4 @@ DEB_NAME="$1"
 apt-get update
 # docker images can be relatively old, especially for unstable.
 apt-get upgrade -qq -y
-apt-get install -qq -y "$DEB_NAME"
+apt-get install -qq -y "$DEB_NAME" "$DEBOOTSTRAP"