diff --git a/guix/build-system/mozilla.scm b/guix/build-system/mozilla.scm
index b4141c8177..bead1bf5bb 100644
--- a/guix/build-system/mozilla.scm
+++ b/guix/build-system/mozilla.scm
@@ -33,7 +33,7 @@
                         #:rest arguments)
   (define lower (build-system-lower gnu-build-system))
   (if target
-      (apply lower
+      (apply lower name
              (substitute-keyword-arguments arguments
                ;; Override --target and --host to what Mozillian configure
                ;; scripts expect.