diff --git a/pkgs/tools/networking/mailutils/default.nix b/pkgs/tools/networking/mailutils/default.nix
index bc0abf53f51..ff7d4176bd2 100644
--- a/pkgs/tools/networking/mailutils/default.nix
+++ b/pkgs/tools/networking/mailutils/default.nix
@@ -37,6 +37,12 @@ stdenv.mkDerivation rec {
       url = "http://git.savannah.gnu.org/cgit/mailutils.git/patch/?id=37713b42a501892469234b90454731d8d8b7a3e6";
       sha256 = "1mwj77nxvf4xvqf26yjs59jyksnizj0lmbymbzg4kmqynzq3zjny";
     })
+    # Fix cross-compilation
+    # https://lists.gnu.org/archive/html/bug-mailutils/2020-11/msg00038.html
+    (fetchpatch {
+      url = "https://lists.gnu.org/archive/html/bug-mailutils/2020-11/txtiNjqcNpqOk.txt";
+      sha256 = "0ghzqb8qx2q8cffbvqzw19mivv7r5f16whplzhm7hdj0j2i6xf6s";
+    })
   ];
 
   enableParallelBuilding = false;