diff --git a/tests/packed-varints.pure.lisp b/tests/packed-varints.pure.lisp
index b15062d6d..2cc9a0a5a 100644
--- a/tests/packed-varints.pure.lisp
+++ b/tests/packed-varints.pure.lisp
@@ -9,14 +9,13 @@
 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
 ;;;; more information.
 
-#+(and x86-64 immobile-space sb-unicode (not interpreter)) ; missing symbols otherwise
-(with-test (:name :bignum-unpacker-no-consing)
+(defparameter test-case
+  #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
+
+(with-test (:name :bignum-unpacker-no-consing :skipped-on :interpreter)
   (flet ((try ()
            (let ((result 0)
-                 ;; This happens to be a fairly large bignum (>2500 bits)
-                 (b (sb-vm::%code-fixups
-                     (sb-kernel:fun-code-header
-                      #'sb-unicode::line-break-annotate))))
+                 (b test-case))
              (sb-int:do-packed-varints (int b)
                (setq result (logxor result int)))
              result)))