diff --git a/programming/library/libdex/pspec.xml b/programming/library/libdex/pspec.xml
index 23a8fd8770..071336edb5 100644
--- a/programming/library/libdex/pspec.xml
+++ b/programming/library/libdex/pspec.xml
@@ -16,6 +16,7 @@
         <Archive sha1sum="2a2f0bb347a64b89c14de89a8148bf3ecd70c507" type="tarxz">https://download.gnome.org/sources/libdex/0.2/libdex-0.2.0.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>meson</Dependency>
+            <Dependency>vala-devel</Dependency>
             <Dependency>glib2-devel</Dependency>
             <Dependency>liburing-devel</Dependency>
             <Dependency>gobject-introspection-devel</Dependency>