diff --git a/Dockerfile b/Dockerfile
index 86c3ca8..8821ece 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,6 +29,6 @@ RUN pip install -r requirements.txt
 
 COPY . .
 
-RUN python -c "import constants; repos='\n'.join(['\n'.join(['', f'[{repo}]', f'Server = file:///prebuilts/\$arch/\$repo']) for repo in constants.REPOSITORIES]); print(repos)" | tee -a /etc/pacman.conf
+RUN python -c "import constants; repos='\n'.join(['\n'.join(['', f'[{repo}]', f'Server = file://{constants.CHROOT_PATHS['packages']}/\$arch/\$repo']) for repo in constants.REPOSITORIES]); print(repos)" | tee -a /etc/pacman.conf
 
 WORKDIR /
diff --git a/chroot.py b/chroot.py
index d9a3bc3..3b3a035 100644
--- a/chroot.py
+++ b/chroot.py
@@ -204,9 +204,9 @@ class Chroot:
                     '-W',
                     '-x',
                     '--exclude',
-                    'pkgbuilds',
+                    CHROOT_PATHS['pkgbuilds'].strip('/'),
                     '--exclude',
-                    'prebuilts',
+                    CHROOT_PATHS['packages'].strip('/'),
                     f'{base_chroot.path}/',
                     f'{self.path}/',
                 ])