diff --git a/src/asm/mod.rs b/src/asm/mod.rs
new file mode 100644
index 00000000..e1b44166
--- /dev/null
+++ b/src/asm/mod.rs
@@ -0,0 +1 @@
+global_asm!(include_str!("ram64.s"));
diff --git a/src/main.rs b/src/main.rs
index 61c343ab..a9bcb9b1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -31,6 +31,8 @@ mod serial;
 #[macro_use]
 mod common;
 
+#[cfg(not(test))]
+mod asm;
 mod block;
 mod bzimage;
 mod efi;
@@ -43,9 +45,6 @@ mod pci;
 mod pe;
 mod virtio;
 
-#[cfg(not(test))]
-global_asm!(include_str!("asm/ram64.s"));
-
 #[cfg(all(not(test), feature = "log-panic"))]
 #[panic_handler]
 fn panic(info: &PanicInfo) -> ! {