diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 1fc540f0f8..c7840e1a20 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -822,7 +822,10 @@ (define-public rust-1.26
                  (substitute* "src/tools/cargo/tests/testsuite/generate_lockfile.rs"
                    ;; This test wants to update the crate index.
                    (("fn no_index_update") "#[ignore]\nfn no_index_update"))
-                 #t)))))))))
+                 #t))))))
+      (supported-systems
+       (delete "aarch64-linux"          ; fails to build, see #47019
+               (package-supported-systems base-rust))))))
 
 (define-public rust-1.27
   (let ((base-rust