diff --git a/agb/build.rs b/agb/build.rs
index b72b8b5d..8a63cb42 100644
--- a/agb/build.rs
+++ b/agb/build.rs
@@ -2,6 +2,7 @@ fn main() {
     println!("cargo:rerun-if-changed=crt0.s");
     println!("cargo:rerun-if-changed=gba_mb.ld");
     println!("cargo:rerun-if-changed=src/sound/mixer/mixer.s");
+    println!("cargo:rerun-if-changed=src/asm_include.s");
     println!("cargo:rerun-if-changed=interrupt_handler.s");
     println!("cargo:rerun-if-changed=gfx/test_logo.png");