diff --git a/l0dable/build.rs b/l0dable/build.rs
index e1c320d6da3d0091fff77c8ca756a9facc245fa3..ca52d6b9d9c9529fe25985e22ddaba2d9eb7b435 100644
--- a/l0dable/build.rs
+++ b/l0dable/build.rs
@@ -42,7 +42,7 @@ fn main() {
         .file("../c/lib/gfx/Fonts/font24.c")
         .file("../c/lib/gfx/Fonts/font8.c")
         .compile("card10");
-    println!("cargo:rerun-if-changed=src/client.rs");
+    println!("cargo:rerun-if-changed=src/client.c");
 
     // Generate bindings to C code
     let bindings = bindgen::Builder::default()