diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index 9866eb4165..17a58fbf61 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -234,7 +234,7 @@ (define-public mescc-tools
     (build-system gnu-build-system)
     (supported-systems '("i686-linux" "x86_64-linux"
                          "armhf-linux" "aarch64-linux"
-                         "powerpc64le-linux"))
+                         "riscv32-linux" "riscv64-linux"))
     (arguments
      `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:test-target "test"