diff --git a/anda/desktops/singularity/libsingularity/libsingularity.spec b/anda/desktops/singularity/libsingularity/libsingularity.spec
index fb892d3773..be9ffdfa17 100644
--- a/anda/desktops/singularity/libsingularity/libsingularity.spec
+++ b/anda/desktops/singularity/libsingularity/libsingularity.spec
@@ -13,6 +13,7 @@ BuildRequires:  meson
 BuildRequires:  cmake
 BuildRequires:  gcc
 BuildRequires:  vala
+BuildRequires:  sassc
 BuildRequires:  pkgconfig(gtk4)
 BuildRequires:  pkgconfig(gtk4-layer-shell-0)
 BuildRequires:  pkgconfig(gee-0.8)