diff --git a/gnu/packages/cran.scm b/gnu/packages/cran.scm
index dba294c8d72c90fb2a4ada25ebf7ad300df43e7e..9a27c82d2143e9dd22c8aec2a485d70a0e1a5d41 100644
--- a/gnu/packages/cran.scm
+++ b/gnu/packages/cran.scm
@@ -410,6 +410,8 @@ (define-public r-ff
      "This package provides data structures that are stored on disk but
 behave (almost) as if they were in RAM by transparently mapping only a section
 in main memory.")
+    ;; error Architecture not supported.
+    (supported-systems (delete "aarch64-linux" %supported-systems))
     (license license:gpl2)))
 
 (define-public r-ffbase