diff --git a/rust/build.rs b/rust/build.rs
index 8c92df0..bdf16cb 100644
--- a/rust/build.rs
+++ b/rust/build.rs
@@ -35,4 +35,5 @@ fn main() {
 
     println!("cargo:rustc-link-lib=static=nfqws");
     println!("cargo:rerun-if-changed={}", NFQ.display());
+    println!("cargo:rerun-if-changed={}", NFQ_CRYPTO.display());
 }