diff --git a/meson.build b/meson.build
index 6afa361..4b1c9c5 100644
--- a/meson.build
+++ b/meson.build
@@ -31,19 +31,27 @@ asgen_sources = ['source/app.d',
 ]
 
 backend_sources = [
+    'source/backends/interfaces.d',
+
+    'source/backends/dummy/package.d',
+    'source/backends/dummy/dummypkg.d',
+    'source/backends/dummy/pkgindex.d',
+
+    'source/backends/archlinux/package.d',
     'source/backends/archlinux/alpkg.d',
     'source/backends/archlinux/alpkgindex.d',
     'source/backends/archlinux/listfile.d',
-    'source/backends/archlinux/package.d',
+
+    'source/backends/debian/package.d',
     'source/backends/debian/debpkg.d',
     'source/backends/debian/debpkgindex.d',
-    'source/backends/debian/package.d',
     'source/backends/debian/tagfile.d',
     'source/backends/debian/debutils.d',
-    'source/backends/dummy/dummypkg.d',
-    'source/backends/dummy/package.d',
-    'source/backends/dummy/pkgindex.d',
-    'source/backends/interfaces.d',
+
+    'source/backends/ubuntu/package.d',
+    'source/backends/ubuntu/ubupkg.d',
+    'source/backends/ubuntu/ubupkgindex.d',
+
     'source/backends/rpmmd/package.d',
     'source/backends/rpmmd/rpmpkg.d',
     'source/backends/rpmmd/rpmpkgindex.d',
diff --git a/source/backends/ubuntu/ubupkg.d b/source/backends/ubuntu/ubupkg.d
index 4742f28..ad71cf0 100644
--- a/source/backends/ubuntu/ubupkg.d
+++ b/source/backends/ubuntu/ubupkg.d
@@ -20,19 +20,20 @@
 
 module backends.ubuntu.ubupkg;
 
-import appstream.Component;
-
-import backends.debian.debpkg;
-import backends.interfaces;
+import std.container : Array;
+import std.path : buildPath;
+import std.file : mkdirRecurse;
+import std.conv : to;
 
 import glib.Internationalization;
 import glib.KeyFile;
-
-import std.container : Array;
+import appstream.Component;
 
 import logging;
-
 import utils : DESKTOP_GROUP;
+import backends.debian.debpkg;
+import backends.interfaces;
+
 
 extern (C) char *bindtextdomain (const char *domainname, const char *dirName) nothrow @nogc;