diff --git a/Rsconscript b/Rsconscript
index 872c7e0..ebd44b2 100644
--- a/Rsconscript
+++ b/Rsconscript
@@ -186,7 +186,11 @@ task "run", desc: "Run HOS in QEMU" do
   Dir.mktmpdir do |tmpdir|
     img = hello_env.expand("^/HOS.img")
     FileUtils.cp(img, tmpdir)
-    sh %W[qemu-system-x86_64 -cpu max -bios OVMF.fd -drive file=#{tmpdir}/HOS.img,format=raw -device qemu-xhci -device usb-tablet]
+    ovmf = "OVMF.fd"
+    if File.exist?("/usr/share/edk2/x64/OVMF.fd")
+      ovmf = "/usr/share/edk2/x64/OVMF.fd"
+    end
+    sh %W[qemu-system-x86_64 -cpu max -bios #{ovmf} -drive file=#{tmpdir}/HOS.img,format=raw -device qemu-xhci -device usb-tablet]
   end
 end