diff --git a/build-aux/build.rs b/build-aux/build.rs
index f90e33049..739ea2f7c 100644
--- a/build-aux/build.rs
+++ b/build-aux/build.rs
@@ -15,6 +15,7 @@ use vergen::EmitBuilder;
 include!("../src/cli.rs");
 
 fn main() {
+    println!("cargo:rerun-if-changed=.version");
     let mut builder = EmitBuilder::builder();
     // If passed a version from automake, use that instead of vergen's formatting
     if let Ok(val) = env::var("VERSION_FROM_AUTOTOOLS") {