diff --git a/packages/cli/src/builder/build.rs b/packages/cli/src/builder/build.rs
index ae47bc4ab..1e6a0c3a0 100644
--- a/packages/cli/src/builder/build.rs
+++ b/packages/cli/src/builder/build.rs
@@ -321,6 +321,7 @@ impl BuildRequest {
         cargo_args
     }
 
+    #[allow(dead_code)]
     pub(crate) fn rust_flags(&self) -> String {
         let mut rust_flags = std::env::var("RUSTFLAGS").unwrap_or_default();