diff --git a/crates/resource-resolver/build.rs b/crates/resource-resolver/build.rs
index 1352994f..4fdc4b39 100644
--- a/crates/resource-resolver/build.rs
+++ b/crates/resource-resolver/build.rs
@@ -4,6 +4,7 @@ fn main() {
     if env::var("CARGO_FEATURE_AUTO_DETECT_FORMAT").is_ok() {
         println!("cargo:rerun-if-env-changed=CARGO_PACKAGER_FORMAT");
         if let Ok(var) = env::var("CARGO_PACKAGER_FORMAT") {
+            println!("cargo:rustc-check-cfg=CARGO_PACKAGER_FORMAT=\"{}\"", var);
             println!("cargo:rustc-cfg=CARGO_PACKAGER_FORMAT=\"{}\"", var);
         }
     }