diff --git a/CONF.sh b/CONF.sh
index 4e5cf334..5b2b38e5 100644
--- a/CONF.sh
+++ b/CONF.sh
@@ -20,6 +20,7 @@ unset LOCAL             || true
 unset LOCALDEBS         || true
 unset SECURITY          || true
 unset PROPOSED_UPDATES  || true
+unset UNRELEASED        || true
 unset BOOTDIR           || true
 unset SYMLINK           || true
 unset COPYLINK          || true
@@ -166,6 +167,9 @@ export CONTRIB=1
 # NOTE: intended to be used for pre-release testing, not for publication!
 #export PROPOSED_UPDATES=$CODENAME-proposed-updates
 
+# Include packages from Debian Ports unreleased
+#export UNRELEASED=1
+
 # Sparc only : bootdir (location of cd.b and second.b)
 # export BOOTDIR=/boot
 
diff --git a/debian/changelog b/debian/changelog
index 3d98f9ac..629d487d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -13,6 +13,7 @@ debian-cd (3.1.21) UNRELEASED; urgency=medium
 
   [ John Paul Adrian Glaubitz ]
   * Add list of packages required for debian-installer on m68k.
+  * Add support for unreleased packages from Debian Ports.
 
  -- Steve McIntyre <93sam@debian.org>  Mon, 19 Jun 2017 13:59:36 +0100
 
diff --git a/tools/apt-selection b/tools/apt-selection
index 3a366a1a..917aa642 100755
--- a/tools/apt-selection
+++ b/tools/apt-selection
@@ -99,6 +99,12 @@ if [ ! -e "$APTTMP/$THIS_PKGSET/apt/sources.list" ]; then
 		>> $APTTMP/$THIS_PKGSET/apt/sources.list
 	fi
 
+	# Debian Ports unreleased packages ...
+	if [ -n "$UNRELEASED" ]; then
+		echo "$ADEB file:$MIRROR unreleased main" \
+			>> $APTTMP/$THIS_PKGSET/apt/sources.list
+	fi
+
 	# Debian-installer
 	if [ $ARCH != source ] ; then
 		if [ -e "$MIRROR/dists/$DI_CODENAME/main/debian-installer" ]; then