diff --git a/gnu/packages/libunwind.scm b/gnu/packages/libunwind.scm
index 5e690cf21c..ccbe2ec751 100644
--- a/gnu/packages/libunwind.scm
+++ b/gnu/packages/libunwind.scm
@@ -22,8 +22,9 @@
 
 (define-module (gnu packages libunwind)
   #:use-module (guix packages)
-  #:use-module (gnu packages)
   #:use-module (guix download)
+  #:use-module (guix utils)
+  #:use-module (gnu packages)
   #:use-module (guix build-system gnu)
   #:use-module (guix licenses))
 
@@ -40,10 +41,13 @@ (define-public libunwind
                "0xj9g6a9q7v7zz6lymf3f6011synibgawi4wi384bywid5kfqsja"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:make-flags
-       ;; Two tests are failing with newer toolchains:
+     `(;; Two tests are failing with newer toolchains:
        ;; https://github.com/libunwind/libunwind/issues/363
-       '("XFAIL_TESTS=run-coredump-unwind run-coredump-unwind-mdi")))
+       #:make-flags
+       '("XFAIL_TESTS=run-coredump-unwind run-coredump-unwind-mdi")
+       ;; A different collection of tests fails for each architecture.
+       #:tests? ,(and (not (%current-target-system))
+                      (target-x86-64?))))
     (home-page "https://www.nongnu.org/libunwind")
     (synopsis "Determining the call chain of a program")
     (description