diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 000000000..be0f6d2ad
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,6 @@
+[build]
+# Workaround to enable this lint for all packages in the workspace
+#
+# Once https://github.com/rust-lang/cargo/issues/12115 makes it to our
+# toolchain, we'll be able to put this in the `Cargo.toml` manifest instead.
+rustflags = ["-Wclippy::unused-async"]
diff --git a/Cargo.toml b/Cargo.toml
index 6d30e7d95..8e0a2f16b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -124,4 +124,3 @@ repair-client = { path = "./repair-client" }
 
 [profile.dev]
 panic = 'abort'
-
diff --git a/downstairs/src/lib.rs b/downstairs/src/lib.rs
index d7d453064..0f0d8706b 100644
--- a/downstairs/src/lib.rs
+++ b/downstairs/src/lib.rs
@@ -1,7 +1,6 @@
 // Copyright 2023 Oxide Computer Company
 #![cfg_attr(usdt_need_asm, feature(asm))]
 #![cfg_attr(all(target_os = "macos", usdt_need_asm_sym), feature(asm_sym))]
-#![warn(clippy::unused_async)]
 
 use futures::executor;
 use futures::lock::{Mutex, MutexGuard};
diff --git a/integration_tests/src/lib.rs b/integration_tests/src/lib.rs
index 2d083135b..9437bf6f5 100644
--- a/integration_tests/src/lib.rs
+++ b/integration_tests/src/lib.rs
@@ -1,5 +1,4 @@
 // Copyright 2023 Oxide Computer Company
-#![warn(clippy::unused_async)]
 
 #[cfg(test)]
 mod test {
diff --git a/pantry/src/lib.rs b/pantry/src/lib.rs
index aa30507f5..814b2af79 100644
--- a/pantry/src/lib.rs
+++ b/pantry/src/lib.rs
@@ -1,6 +1,5 @@
 // Copyright 2022 Oxide Computer Company
 
-#![warn(clippy::unused_async)]
 use std::sync::Arc;
 
 use anyhow::Result;
diff --git a/upstairs/src/lib.rs b/upstairs/src/lib.rs
index f30dc2f91..4dff50237 100644
--- a/upstairs/src/lib.rs
+++ b/upstairs/src/lib.rs
@@ -2,7 +2,6 @@
 #![cfg_attr(usdt_need_asm, feature(asm))]
 #![cfg_attr(all(target_os = "macos", usdt_need_asm_sym), feature(asm_sym))]
 #![allow(clippy::mutex_atomic)]
-#![warn(clippy::unused_async)]
 
 use std::clone::Clone;
 use std::collections::{BTreeSet, HashMap, HashSet, VecDeque};