diff --git a/racket/src/cs/c/Makefile.in b/racket/src/cs/c/Makefile.in
index 13412a5148..f11de0cd19 100644
--- a/racket/src/cs/c/Makefile.in
+++ b/racket/src/cs/c/Makefile.in
@@ -470,8 +470,10 @@ macos-install-gracket:
 # ----------------------------------------
 # Check
 
+CHECK_BOOT = -O 'info@compiler/cm' -l- setup --boot $(srcdir)/../../setup-go.rkt $(builddir)/compiled/cs ignored $(builddir)/ignored.d
+
 check-racketcs:
-	./racketcs $(srcdir)/../known.rkt $(srcdir)/..
+	./racketcs $(CHECK_BOOT) $(srcdir)/../known.rkt $(srcdir)/..
 
 # ----------------------------------------
 # Reconfigure
diff --git a/racket/src/cs/known.rkt b/racket/src/cs/known.rkt
index 56bd693d51..8b3c365e8f 100644
--- a/racket/src/cs/known.rkt
+++ b/racket/src/cs/known.rkt
@@ -68,6 +68,7 @@
 
   (command-line
    #:args (dir)
+   (printf "Checking primitive arity information\n")
    (parameterize ([current-directory dir])
      (define prim-knowns (get-prim-knowns))
      (define primitives (get-primitives))