diff --git a/website/source/partials/builder/qemu/_Config-not-required.html.md b/website/source/partials/builder/qemu/_Config-not-required.html.md
index 723c53276..b0b3922cc 100644
--- a/website/source/partials/builder/qemu/_Config-not-required.html.md
+++ b/website/source/partials/builder/qemu/_Config-not-required.html.md
@@ -199,6 +199,10 @@
     to qemu, allowing it to choose the default. This may be needed when running
     under macOS, and getting errors about sdl not being available.
     
+-   `display` (string) - What QEMU -display option to use. Defaults to gtk, use none to not pass the
+    -display option allowing QEMU to choose the default. This may be needed when
+    running under macOS, and getting errors about sdl not being available.
+    
 -   `vnc_bind_address` (string) - The IP address that should be
     binded to for VNC. By default packer will use 127.0.0.1 for this. If you
     wish to bind to all interfaces use 0.0.0.0.