diff --git a/build/archlinux/PKGBUILD b/build/archlinux/PKGBUILD
index e635fb0..073c1f6 100644
--- a/build/archlinux/PKGBUILD
+++ b/build/archlinux/PKGBUILD
@@ -9,6 +9,9 @@ license=('MIT')
 groups=()
 depends=()
 makedepends=('go')
+optdepends=(
+    'tree: to make a filelist html file'
+    'ffmpeg: to convert media to ogg')
 provides=('dwelling-radio')
 conflicts=('dwelling-radio')
 replaces=()