diff --git a/pkgs/applications/virtualization/qemu/default.nix b/pkgs/applications/virtualization/qemu/default.nix
index d83c6d350e2e..933d6c293ad1 100644
--- a/pkgs/applications/virtualization/qemu/default.nix
+++ b/pkgs/applications/virtualization/qemu/default.nix
@@ -118,8 +118,6 @@ stdenv.mkDerivation rec {
       "--enable-tools"
       "--enable-guest-agent"
     ]
-    # disable sysctl check on darwin.
-    ++ optional stdenv.isDarwin "--cpu=x86_64"
     ++ optional numaSupport "--enable-numa"
     ++ optional seccompSupport "--enable-seccomp"
     ++ optional smartcardSupport "--enable-smartcard"