diff --git a/build.zig b/build.zig
index 191e029..712b389 100644
--- a/build.zig
+++ b/build.zig
@@ -24,7 +24,7 @@ pub fn build(b: *std.Build) void {
     b.getInstallStep().dependOn(&img_install.step);
 
     const run = b.addSystemCommand(&.{ "qemu-system-i386", "-fda" });
-    run.addFileArg(b.path("zig-out/bin/initramfs.img"));
+    run.addFileArg(floppy.obj);
 
     const run_step = b.step("run", "run the os in qemu");
     run_step.dependOn(&run.step);