diff --git a/pkgs/tools/misc/fwup/default.nix b/pkgs/tools/misc/fwup/default.nix
index f58b73a4723..3a49a9309e6 100644
--- a/pkgs/tools/misc/fwup/default.nix
+++ b/pkgs/tools/misc/fwup/default.nix
@@ -48,10 +48,11 @@ stdenv.mkDerivation rec {
 
   propagatedBuildInputs = [
     coreutils
-    dosfstools
-    mtools
     unzip
     zip
+  ] ++ lib.optionals doCheck [
+    mtools
+    dosfstools
   ];
 
   checkInputs = [