diff --git a/mutter.spec b/mutter.spec
index 7b9abb5..ed38faf 100644
--- a/mutter.spec
+++ b/mutter.spec
@@ -101,6 +101,8 @@ BuildRequires: pkgconfig(json-glib-1.0) >= %{json_glib_version}
 BuildRequires: pkgconfig(libinput) >= %{libinput_version}
 BuildRequires: pkgconfig(xwayland)
 
+BuildRequires: python3-dbusmock
+
 Requires: control-center-filesystem
 Requires: gsettings-desktop-schemas%{?_isa} >= %{gsettings_desktop_schemas_version}
 Requires: gnome-settings-daemon