diff --git a/test/units/testsuite-13.machinectl.sh b/test/units/testsuite-13.machinectl.sh
index 966b11bc7f..e104a225cc 100755
--- a/test/units/testsuite-13.machinectl.sh
+++ b/test/units/testsuite-13.machinectl.sh
@@ -150,7 +150,7 @@ test ! -d /var/lib/machines/.hidden1
 
 # Prepare a simple raw container
 mkdir -p /tmp/mnt
-dd if=/dev/zero of=/tmp/container.raw bs=1M count=32
+dd if=/dev/zero of=/tmp/container.raw bs=1M count=64
 mkfs.ext4 /tmp/container.raw
 mount -o loop /tmp/container.raw /tmp/mnt
 cp -r /var/lib/machines/container1/* /tmp/mnt
diff --git a/test/units/testsuite-13.nspawn.sh b/test/units/testsuite-13.nspawn.sh
index 682f677735..9bcdec9298 100755
--- a/test/units/testsuite-13.nspawn.sh
+++ b/test/units/testsuite-13.nspawn.sh
@@ -83,7 +83,7 @@ testcase_sanity() {
     create_dummy_container "$template"
     # Create a simple image from the just created container template
     image="$(mktemp /var/lib/machines/testsuite-13.image-XXX.img)"
-    dd if=/dev/zero of="$image" bs=1M count=32
+    dd if=/dev/zero of="$image" bs=1M count=64
     mkfs.ext4 "$image"
     mkdir -p /mnt
     mount -o loop "$image" /mnt