diff --git a/test/test-functions b/test/test-functions
index 40c7d2ac38..f03a63ac04 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -606,7 +606,7 @@ ExecStart=sleep 120
 EOF
         cp "$initdir/usr/lib/systemd/system/minimal-app0.service" "$initdir/usr/lib/systemd/system/minimal-app0-foo.service"
 
-        mksquashfs "$initdir" "$oldinitdir/usr/share/minimal_0.raw"
+        mksquashfs "$initdir" "$oldinitdir/usr/share/minimal_0.raw" -noappend
         veritysetup format "$oldinitdir/usr/share/minimal_0.raw" "$oldinitdir/usr/share/minimal_0.verity" | \
             grep '^Root hash:' | cut -f2 | tr -d '\n' >"$oldinitdir/usr/share/minimal_0.roothash"
 
@@ -614,7 +614,7 @@ EOF
         rm "$initdir/usr/lib/systemd/system/minimal-app0-foo.service"
         cp "$initdir/usr/lib/systemd/system/minimal-app0.service" "$initdir/usr/lib/systemd/system/minimal-app0-bar.service"
 
-        mksquashfs "$initdir" "$oldinitdir/usr/share/minimal_1.raw"
+        mksquashfs "$initdir" "$oldinitdir/usr/share/minimal_1.raw" -noappend
         veritysetup format "$oldinitdir/usr/share/minimal_1.raw" "$oldinitdir/usr/share/minimal_1.verity" | \
             grep '^Root hash:' | cut -f2 | tr -d '\n' >"$oldinitdir/usr/share/minimal_1.roothash"
 
@@ -642,7 +642,7 @@ cat /usr/lib/extension-release.d/extension-release.app0
 EOF
         chmod +x "$initdir/opt/script0.sh"
         echo MARKER=1 >"$initdir/usr/lib/systemd/system/some_file"
-        mksquashfs "$initdir" "$oldinitdir/usr/share/app0.raw"
+        mksquashfs "$initdir" "$oldinitdir/usr/share/app0.raw" -noappend
 
         export initdir="$TESTDIR/app1"
         mkdir -p "$initdir/usr/lib/extension-release.d" "$initdir/usr/lib/systemd/system" "$initdir/opt"
@@ -665,7 +665,7 @@ cat /usr/lib/extension-release.d/extension-release.app2
 EOF
         chmod +x "$initdir/opt/script1.sh"
         echo MARKER=1 >"$initdir/usr/lib/systemd/system/other_file"
-        mksquashfs "$initdir" "$oldinitdir/usr/share/app1.raw"
+        mksquashfs "$initdir" "$oldinitdir/usr/share/app1.raw" -noappend
     )
 }