diff --git a/build.rs b/build.rs
index e1ce76a..e131a36 100644
--- a/build.rs
+++ b/build.rs
@@ -91,7 +91,7 @@ fn compile_memcpy() {
         "memcpy.S",
     ];
 
-    let root = Path::new("asm");
+    let root = Path::new("src/asm");
     for src in sources {
         println!("cargo:rerun-if-changed={}", src);
         cfg.file(root.join(src));
diff --git a/asm/memcpy.S b/src/asm/memcpy.S
similarity index 100%
rename from asm/memcpy.S
rename to src/asm/memcpy.S