diff --git a/network/spice-gtk/spice-gtk.SlackBuild b/network/spice-gtk/spice-gtk.SlackBuild
index 951b6f8060..860576c9f4 100644
--- a/network/spice-gtk/spice-gtk.SlackBuild
+++ b/network/spice-gtk/spice-gtk.SlackBuild
@@ -107,7 +107,7 @@ meson setup \
   -D gtk_doc=enabled \
   -D usb-ids-path=/usr/share/hwdata/usb.ids \
   .. || exit 1
-  "${NINJA:=ninja}" $NUMJOBS || exit 1
+  "${NINJA:=ninja}" || exit 1
   DESTDIR=$PKG $NINJA install || exit 1
 cd ..