--- a/build.rs
+++ b/build.rs
@@ -6,6 +6,7 @@
 use std::process::Command;
 
 fn main() {
+    println!("dh-cargo:deb-built-using=cxxbridge1=0={}", env::var("CARGO_MANIFEST_DIR").unwrap());
     let manifest_dir_opt = env::var_os("CARGO_MANIFEST_DIR").map(PathBuf::from);
     let manifest_dir = manifest_dir_opt.as_deref().unwrap_or(Path::new(""));